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Comparison of TLS implementations

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This article is about TLS libraries comparison. For cryptographic libraries comparison, see Comparison of cryptography libraries.
"Secure Transport" redirects here. For the transportation of valuables, see Armored car (valuables).

The Transport Layer Security (TLS) protocol provides the ability to secure communications across or inside networks. This comparison of TLS implementations compares several of the most notable libraries. There are several TLS implementations which are free software and open source.

All comparison categories use the stable version of each implementation listed in the overview section. The comparison is limited to features that directly relate to the TLS protocol.

Overview

[edit]
Implementation Developed by Open source Software license Copyright holder Written in Latest stable version, release date Origin
BotanJack Lloyd Yes Simplified BSD LicenseJack Lloyd C++3.6.1 (October 26, 2024; 5 months ago (2024-10-26)[1]) [±]US (Vermont)
BoringSSLGoogleYes OpenSSL-SSLeay dual-license, ISC licenseEric Young, Tim Hudson, Sun, OpenSSL project, Google, and others C, C++, Go, assembly?? Australia/EU
Bouncy CastleThe Legion of the Bouncy Castle Inc. Yes MIT LicenseLegion of the Bouncy Castle Inc. Java, C#
Java1.80 / January 14, 2025; 3 months ago (2025-01-14)[2]
Java LTSBC-LJA 2.73.7 / November 8, 2024; 5 months ago (2024-11-08)[3]
Java FIPSBC-FJA 2.0.0 / July 30, 2024; 8 months ago (2024-07-30)[4]
C#2.5.1 / February 14, 2025; 2 months ago (2025-02-14)[5]
C# FIPSBC-FNA 1.0.2 / March 11, 2024; 13 months ago (2024-03-11)[6]
Australia
BSAFEDell, formerly RSA SecurityNo ProprietaryDellJava, C, assemblySSL-J 6.6 (July 2, 2024; 9 months ago (2024-07-02)[7]) [±]

SSL-J 7.3.1 (October 7, 2024; 6 months ago (2024-10-07)[8]) [±]
Micro Edition Suite 5.0.3 (December 3, 2024; 4 months ago (2024-12-03)[9]) [±]

Australia
cryptlibPeter GutmannYes Sleepycat License and commercial license Peter GutmannC3.4.5 (2019; 6 years ago (2019)[10]) [±]NZ
GnuTLSGnuTLS projectYes LGPL-2.1-or-laterFree Software FoundationC3.8.9[11] Edit this on Wikidata 2025-02-08 EU (Greece and Sweden)
Java Secure Socket Extension (JSSE) OracleYes GNU GPLv2 and commercial license Oracle Java

23.0.1 (October 15, 2024; 6 months ago (2024-10-15)[12]) [±]
21.0.5 LTS (October 15, 2024; 6 months ago (2024-10-15)[13]) [±]
17.0.13 LTS (October 15, 2024; 6 months ago (2024-10-15)[14]) [±]
11.0.25 LTS (October 15, 2024; 6 months ago (2024-10-15)[15]) [±]
8u431 LTS (October 15, 2024; 6 months ago (2024-10-15)[16]) [±]

US
LibreSSLOpenBSD ProjectYes Apache-1.0, BSD-4-Clause, ISC, and public domainEric Young, Tim Hudson, Sun, OpenSSL project, OpenBSD Project, and others C, assembly4.0.0[17] Edit this on Wikidata 2024-10-14 Canada
MatrixSSL[18]PeerSec Networks Yes GNU GPLv2+ and commercial license PeerSec Networks C4.2.2 (September 11, 2019; 5 years ago (2019-09-11)[19]) [±]US
Mbed TLS (previously PolarSSL) ArmYes Apache License 2.0, GNU GPLv2+ and commercial license Arm HoldingsC3.6.3[20]Edit this on Wikidata (24 March 2025; 32 days ago (24 March 2025)) [±]EU (Netherlands)
Network Security Services (NSS) Mozilla, AOL, Red Hat, Sun, Oracle, Google and others Yes MPL 2.0 NSS contributors C, assembly
Standard3.84 / October 12, 2022; 2 years ago (2022-10-12)[21]
Extended Support Release3.79.1 / August 18, 2022; 2 years ago (2022-08-18)[21]
US
OpenSSLOpenSSL projectYes Apache-2.0[a]Eric Young, Tim Hudson, Sun, OpenSSL project, and others C, assembly3.5.0[22] Edit this on Wikidata 2025-04-08 Australia/EU
RustlsJoe Birr-Pixton, Dirkjan Ochtman, Daniel McCarney, Josh Aas, and open source contributors Yes Apache-2.0, MIT License and ISCOpen source contributors Rustv0.23.25 (March 17, 2025; 39 days ago (2025-03-17)[23]) [±]United Kingdom
s2nAmazonYes Apache License 2.0, GNU GPLv2+ and commercial license Amazon.com, Inc. CContinuous US
SchannelMicrosoftNo ProprietaryMicrosoft Corporation Windows 11, 2021-10-05 US
Secure TransportApple Inc.Yes APSL 2.0Apple Inc. 57337.20.44 (OS X 10.11.2), 2015-12-08 US
wolfSSL (previously CyaSSL) wolfSSL[24]Yes GNU GPLv2+ and commercial license wolfSSL Inc.[25]C, assembly5.8.0 (April 24, 2025; 1 day ago (2025-04-24)[26]) [±]US
Erlang/OTP SSL application Ericsson Yes Apache License 2.0 Ericsson Erlang OTP-21, 2018-06-19 Sweden
Implementation Developed by Open source Software license Copyright owner Written in Latest stable version, release date Origin
  1. ^Apache-2.0 for OpenSSL 3.0 and later releases. OpenSSL-SSLeay dual-license for any release before OpenSSL 3.0.

TLS/SSL protocol version support

[edit]

Several versions of the TLS protocol exist. SSL 2.0 is a deprecated[27] protocol version with significant weaknesses. SSL 3.0 (1996) and TLS 1.0 (1999) are successors with two weaknesses in CBC-padding that were explained in 2001 by Serge Vaudenay.[28] TLS 1.1 (2006) fixed only one of the problems, by switching to random initialization vectors (IV) for CBC block ciphers, whereas the more problematic use of mac-pad-encrypt instead of the secure pad-mac-encrypt was addressed with RFC 7366.[29] A workaround for SSL 3.0 and TLS 1.0, roughly equivalent to random IVs from TLS 1.1, was widely adopted by many implementations in late 2011.[30] In 2014, the POODLE vulnerability of SSL 3.0 was discovered, which takes advantage of the known vulnerabilities in CBC, and an insecure fallback negotiation used in browsers.[31]

TLS 1.2 (2008) introduced a means to identify the hash used for digital signatures. While permitting the use of stronger hash functions for digital signatures in the future (rsa,sha256/sha384/sha512) over the SSL 3.0 conservative choice (rsa,sha1+md5), the TLS 1.2 protocol change inadvertently and substantially weakened the default digital signatures and provides (rsa,sha1) and even (rsa,md5).[32]

Datagram Transport Layer Security (DTLS or Datagram TLS) 1.0 is a modification of TLS 1.1 for a packet-oriented transport layer, where packet loss and packet reordering have to be tolerated. The revision DTLS 1.2 based on TLS 1.2 was published in January 2012.[33]

TLS 1.3 (2018) specified in RFC 8446 includes major optimizations and security improvements. QUIC (2021) specified in RFC 9000 and DTLS 1.3 (2022) specified in RFC 9147 builds on TLS 1.3. The publishing of TLS 1.3 and DTLS 1.3 obsoleted TLS 1.2 and DTLS 1.2.

Note that there are known vulnerabilities in SSL 2.0 and SSL 3.0. In 2021, IETF published RFC 8996 also forbidding negotiation of TLS 1.0, TLS 1.1, and DTLS 1.0 due to known vulnerabilities. NIST SP 800-52 requires support of TLS 1.3 by January 2024. Support of TLS 1.3 means that two compliant nodes will never negotiate TLS 1.2.

Implementation SSL 2.0 (insecure)[34]SSL 3.0 (insecure)[35]TLS 1.0 (deprecated)[36]TLS 1.1 (deprecated)[37]TLS 1.2[38]TLS 1.3DTLS 1.0 (deprecated)[39]DTLS 1.2[33]
BotanNo No[40]No No Yes Yes No Yes
BoringSSLYes Yes Yes Yes Yes Yes
Bouncy CastleNo No Yes Yes Yes Yes
(draft version)		Yes Yes
BSAFE SSL-J[41]No Disabled by default No[a]No[a]Yes Yes No No
cryptlibNo Disabled by default at compile time Yes Yes Yes No No
GnuTLSNo[b]Disabled by default[42]Yes Yes Yes Yes[43]Yes Yes
JSSENo[b]Disabled by default[44]Disabled by default[45]Disabled by default[45]Yes Yes Yes Yes
LibreSSLNo[46]No[47]Yes Yes Yes Yes Yes Yes[48]
MatrixSSLNo Disabled by default at compile time[49]Yes Yes Yes Yes Yes Yes
Mbed TLSNo No[50]No[50]No[50]Yes Yes
(experimental)		Yes[51]Yes[51]
NSSNo[c]Disabled by default[52]Yes Yes[53]Yes[54]Yes[55]Yes[53]Yes[56]
OpenSSLNo[57]Disabled by default Yes Yes[58]Yes[58]Yes Yes Yes[59]
RustlsNo[60]No[60]No[60]No[60]Yes[60]Yes[60]No No
s2n[61]No Disabled by default Yes Yes Yes Yes No No
Schannel XP, 2003[62]Disabled by default in MSIE 7 Enabled by default Enabled by default in MSIE 7 No No No No No
Schannel Vista[63]Disabled by default Enabled by default Yes No No No No No
Schannel 2008[63]Disabled by default Enabled by default Yes Disabled by default (KB4019276)Disabled by default (KB4019276)No No No
Schannel 7, 2008R2[64]Disabled by default Disabled by default in MSIE 11 Yes Enabled by default in MSIE 11 Enabled by default in MSIE 11 No Yes[65]No[65]
Schannel 8, 2012[64]Disabled by default Enabled by default Yes Disabled by default Disabled by default No Yes No
Schannel 8.1, 2012R2, 10 RTM & v1511[64]Disabled by default Disabled by default in MSIE 11 Yes Yes Yes No Yes No
Schannel 10 v1607 / 2016[66]No Disabled by default Yes Yes Yes No Yes Yes
Schannel 11 / 2022[67]No Disabled by default Yes Yes Yes Yes Yes Yes
Secure Transport

OS X 10.2-10.7, iOS 1-4

Yes Yes Yes No No No No
Secure Transport OS X 10.8-10.10, iOS 5-8 No[d]Yes Yes Yes[d]Yes[d]Yes[d]No
Secure Transport OS X 10.11, iOS 9 No No[d]Yes Yes Yes Yes Un­known
Secure Transport OS X 10.13, iOS 11 No No[d]Yes Yes Yes Yes
(draft version)[68]		Yes Un­known
wolfSSLNo Disabled by default[69]Disabled by default[70]Yes Yes Yes Yes Yes
Erlang/OTP SSL application[71]No [e]No [f]Disabled by default [e]Disabled by default [e]Yes Partially [g]Disabled by default [e]Yes
Implementation SSL 2.0 (insecure)[34]SSL 3.0 (insecure)[35]TLS 1.0 (deprecated)[36]TLS 1.1 (deprecated)[37]TLS 1.2[38]TLS 1.3DTLS 1.0 (deprecated)[39]DTLS 1.2[33]
  1. ^ abAs of SSL-J 7.0, support for TLS 1.0 and 1.1 has been removed
  2. ^ abSSL 2.0 client hello is supported for backward compatibility reasons even though SSL 2.0 is not supported.
  3. ^Server-side implementation of the SSL/TLS protocol still supports processing of received v2-compatible client hello messages."NSS 3.24 release notes". Mozilla Developer Network. Mozilla. Archived from the original on 2016-08-26. Retrieved 2016-06-19.
  4. ^ abcdefSecure Transport: SSL 2.0 was discontinued in OS X 10.8. SSL 3.0 was discontinued in OS X 10.11 and iOS 9.TLS 1.1, 1.2 and DTLS are available on iOS 5.0 and later, and OS X 10.9 and later."Technical Note TN2287: iOS 5 and TLS 1.2 Interoperability Issues". iOS Developer Library. Apple Inc. Retrieved 2012-05-03.
  5. ^ abcdSince OTP 22
  6. ^Since OTP 23
  7. ^"Erlang OTP SSL application TLS 1.3 compliance table".

NSA Suite B Cryptography

[edit]

Required components for NSA Suite B Cryptography (RFC 6460) are:

Per CNSSP-15, the 256-bit elliptic curve (specified in FIPS 186-2), SHA-256, and AES with 128-bit keys are sufficient for protecting classified information up to the Secret level, while the 384-bit elliptic curve (specified in FIPS 186-2), SHA-384, and AES with 256-bit keys are necessary for the protection of Top Secret information.

Implementation TLS 1.2Suite B
BotanYes
Bouncy CastleYes
BSAFEYes[41]
cryptlibYes
GnuTLSYes
JSSEYes[72]
LibreSSLYes
MatrixSSLYes
Mbed TLSYes
NSSNo[73]
OpenSSLYes[59]
RustlsYes[60]
S2n
SchannelYes[74]
Secure TransportNo
wolfSSLYes
Implementation TLS 1.2 Suite B

Certifications

[edit]

Note that certain certifications have received serious negative criticism from people who are actually involved in them.[75]

Implementation FIPS 140-1, FIPS 140-2[76]FIPS 140-3
Level 1 Level 2[disputed – discuss]Level 1
Botan[77]
Bouncy CastleBC-FJA 1.0.0 (#2768)
BC-FJA 1.0.1 (#3152)
BSAFE SSL-J[78]Crypto-J 6.0 (1785, 1786)
Crypto-J 6.1 / 6.1.1.0.1 (2057, 2058)
Crypto-J 6.2 / 6.2.1.1 (2468, 2469)
Crypto-J 6.2.4 (3172, 3184)
Crypto-J 6.2.5 (#3819, #3820)
Crypto-J 6.3 (#4696, #4697) 		Crypto-J 7.0 (4892)
cryptlib[79]
GnuTLS[80]Red Hat Enterprise Linux GnuTLS Cryptographic Module (#2780)
JSSE
LibreSSL[46]no support
MatrixSSL[81]SafeZone FIPS Cryptographic Module: 1.1 (#2389)
Mbed TLS[82]
NSS[83]Network Security Services: 3.2.2 (#247)
Network Security Services Cryptographic Module: 3.11.4 (#815), 3.12.4 (#1278), 3.12.9.1 (#1837) 		Netscape Security Module: 1 (#7[notes 1]), 1.01 (#47[notes 2])
Network Security Services: 3.2.2 (#248[notes 3])
Network Security Services Cryptographic Module: 3.11.4 (#814[notes 4]), 3.12.4 (#1279, #1280[notes 5])
OpenSSL[84]OpenSSL FIPS Object Module: 1.0 (#624), 1.1.1 (#733), 1.1.2 (#918), 1.2, 1.2.1, 1.2.2, 1.2.3 or 1.2.4 (#1051)
2.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7 or 2.0.8 (#1747)
Rustlsaws-lc FIPS module[85] (#4759)
Schannel[86]Cryptographic modules in Windows NT 4.0, 95, 95, 2000, XP, Server 2003, CE 5, CE 6, Mobile 6.x, Vista, Server 2008, 7, Server 2008 R2, 8, Server 2012, RT, Surface, Phone 8
See details on Microsoft FIPS 140 Validated Cryptographic Modules
Secure TransportApple FIPS Cryptographic Module: 1.0 (OS X 10.6, #1514), 1.1 (OS X 10.7, #1701)
Apple OS X CoreCrypto Module; CoreCrypto Kernel Module: 3.0 (OS X 10.8, #1964, #1956), 4.0 (OS X 10.9, #2015, #2016)
Apple iOS CoreCrypto Module; CoreCrypto Kernel Module: 3.0 (iOS 6, #1963, #1944), 4.0 (iOS 7, #2020, #2021)
wolfSSL[87]wolfCrypt FIPS Module: 4.0 (#3389)
See details on NIST certificate for validated Operating Environments
wolfCrypt FIPS Module: 3.6.0 (#2425)
See details on NIST certificate for validated Operating Environments 		wolfCrypt FIPS Module (#4178)
See details on NIST certificate
Implementation Level 1 Level 2 Level 1
FIPS 140-1, FIPS 140-2 FIPS 140-3
  1. ^with Sun Sparc 5 w/ Sun Solaris v 2.4SE (ITSEC-rated)
  2. ^with Sun Ultra-5 w/ Sun Trusted Solaris version 2.5.1 (ITSEC-rated)
  3. ^with Solaris v8.0 with AdminSuite 3.0.1 as specified in UK IT SEC CC Report No. P148 EAL4 on a SUN SPARCUltra-1
  4. ^with these platforms; Red Hat Enterprise Linux Version 4 Update 1 AS on IBM xSeries 336 with Intel Xeon CPU, Trusted Solaris 8 4/01 on Sun Blade 2500 Workstation with UltraSPARC IIIi CPU
  5. ^with these platforms; Red Hat Enterprise Linux v5 running on an IBM System x3550, Red Hat Enterprise Linux v5 running on an HP ProLiant DL145, Sun Solaris 10 5/08 running on a Sun SunBlade 2000 workstation, Sun Solaris 10 5/08 running on a Sun W2100z workstation

Key exchange algorithms (certificate-only)

[edit]

This section lists the certificate verification functionality available in the various implementations.

Implementation RSA[38]RSA-EXPORT (insecure)[38]DHE-RSA (forward secrecy)[38]DHE-DSS (forward secrecy)[38]ECDH-ECDSA[88]ECDHE-ECDSA (forward secrecy)[88]ECDH-RSA[88]ECDHE-RSA (forward secrecy)[88]GOST R 34.10-94, 34.10-2001[89]
BotanDisabled by default No Yes Disabled by default No Yes No Yes No
BSAFEYes No Yes Yes Yes Yes Yes Yes No
cryptlibYes No Yes Yes No Yes No No No
GnuTLSYes No Yes Disabled by default[42]No Yes No Yes No
JSSEYes Disabled by default Yes Yes Yes Yes Yes Yes No
LibreSSLYes No[46]Yes Yes No Yes No Yes Yes[90]
MatrixSSLYes No Yes No Yes Yes Yes Yes No
Mbed TLSYes No Yes No Yes Yes Yes Yes No
NSSYes Disabled by default Yes[91]Yes Yes Yes Yes Yes No[92][93]
OpenSSLYes No[57]Yes Disabled by default[57]No Yes No Yes Yes[94]
RustlsNo No No No No Yes[60]No Yes[60]No
Schannel XP/2003Yes Yes No XP: Max 1024 bits
2003: 1024 bits only 		No No No No No[95]
Schannel Vista/2008Yes Disabled by default No 1024 bits by default[96]No Yes No except AES_GCM No[95]
Schannel 8/2012Yes Disabled by default AES_GCM only[97][98][99]1024 bits by default[96]No Yes No except AES_GCM No[95]
Schannel 7/2008R2, 8.1/2012R2Yes Disabled by default Yes 2048 bits by default[96]No Yes No except AES_GCM No[95]
Schannel 10Yes Disabled by default Yes 2048 bits by default[96]No Yes No Yes No[95]
Secure Transport OS X 10.6 Yes Yes except AES_GCM Yes Yes except AES_GCM yes except AES_GCM No
Secure Transport OS X 10.8-10.10 Yes No except AES_GCM No Yes except AES_GCM Yes except AES_GCM No
Secure Transport OS X 10.11 Yes No Yes No No Yes No Yes No
wolfSSLYes No Yes No Yes Yes Yes Yes No
Erlang/OTP SSL application Yes No Yes Yes Yes Yes Yes Yes No
Implementation RSA[38]RSA-EXPORT (insecure)[38]DHE-RSA (forward secrecy)[38]DHE-DSS (forward secrecy)[38]ECDH-ECDSA[88]ECDHE-ECDSA (forward secrecy)[88]ECDH-RSA[88]ECDHE-RSA (forward secrecy)[88]GOST R 34.10-94, 34.10-2001[89]

Key exchange algorithms (alternative key-exchanges)

[edit]
Implementation SRP[100]SRP-DSS[100]SRP-RSA[100]PSK-RSA[101]PSK[101]DHE-PSK (forward secrecy)[101]ECDHE-PSK (forward secrecy)[102]KRB5[103]DH-ANON[38] (insecure) ECDH-ANON[88] (insecure)
BotanNo No No No Yes No Yes No No No
BSAFE SSL-J No No No No Yes[104]No No No Disabled by default Disabled by default
cryptlibNo No No No Yes Yes No Un­known No No
GnuTLSYes Yes Yes Yes Yes Yes Yes No Disabled by default Disabled by default
JSSENo No No No No No No No Disabled by default Disabled by default
LibreSSLNo[105]No[105]No[105]No No No No No Yes Yes
MatrixSSLNo No No Yes Yes Yes No No Disabled by default No
Mbed TLSNo No No Yes Yes Yes Yes No No No
NSSNo[106]No[106]No[106]No[107]No[107]No[107]No[107]No Client side only, disabled by default[108]Disabled by default[109]
OpenSSLYes Yes Yes Yes Yes Yes Yes Yes[110]Disabled by default[111]Disabled by default[111]
RustlsNo No No No No No No No No No
SchannelNo No No No No No No Yes No No
Secure TransportNo No No No No No No Un­known Yes Yes
wolfSSLYes Yes Yes Yes Yes Yes Yes[112]Yes No No
Erlang/OTP SSL application Disabled by default Disabled by default Disabled by default Disabled by default Disabled by default Disabled by default No No Disabled by default Disabled by default
Implementation SRP[100]SRP-DSS[100]SRP-RSA[100]PSK-RSA[101]PSK[101]DHE-PSK (forward secrecy)[101]ECDHE-PSK (forward secrecy)[102]KRB5[103]DH-ANON[38] (insecure) ECDH-ANON[88] (insecure)

Certificate verification methods

[edit]
Implementation Application-defined PKIX path validation[113]CRL[114]OCSP[115]DANE (DNSSEC)[116][117]CT[118]
BotanYes Yes Yes Yes No Un­known
Bouncy CastleYes Yes Yes Yes Yes Un­known
BSAFEYes Yes Yes Yes No Un­known
cryptlibYes Yes Yes Yes No Un­known
GnuTLSYes Yes Yes Yes Yes Un­known
JSSEYes Yes Yes Yes No No
LibreSSLYes Yes Yes Yes No Un­known
MatrixSSLYes Yes Yes Yes[119]No Un­known
Mbed TLSYes Yes Yes No[120]No Un­known
NSSYes Yes Yes Yes No[121]Un­known
OpenSSLYes Yes Yes Yes Yes Yes
RustlsYes Yes Yes No No No
s2nNo [122]Un­known [123]Un­known [124]
SchannelUn­known Yes Yes[125]Yes[125]No Un­known
Secure TransportYes Yes Yes Yes No Un­known
wolfSSLYes Yes Yes Yes No Un­known
Erlang/OTP SSL application Yes Yes Yes No No Un­known
Implementation Application-defined PKIX path validation CRL OCSP DANE (DNSSEC) CT

Encryption algorithms

[edit]
ImplementationBlock cipher with mode of operationStream cipherNone
AESGCM
[126]		AESCCM
[127]		AESCBCCamelliaGCM
[128]		CamelliaCBC
[129][128]		ARIAGCM
[130]		ARIACBC
[130]		SEEDCBC
[131]		3DES EDECBC
(insecure)[132]		GOST 28147-89CNT
(proposed)
[89][n 1]		ChaCha20-Poly1305
[133]		Null
(insecure)
[n 2]
BotanYes Yes Yes Yes Yes No No Disabled by default Disabled by default No Yes[134]Not implemented
BoringSSLYes No Yes No No No No No Yes No Yes
BSAFE SSL-J Yes Yes Yes No No No No No Disabled by default No No Disabled by default
cryptlibYes No Yes No No No No No Yes No No Not implemented
GnuTLSYes Yes[42]Yes Yes Yes No No No Disabled by default[135]No Yes[136]Disabled by default
JSSEYes No Yes No No No No No Disabled by default[137]No Yes
(JDK 12+)[138]		Disabled by default
LibreSSLYes[46]No Yes No Yes[90]No No No[46]Yes Yes[90]Yes[46]Disabled by default
MatrixSSLYes No Yes No No No No Yes Disabled by default No Yes[139]Disabled by default
Mbed TLSYes Yes [140]Yes Yes Yes Yes[141]Yes[141]No No[50]No Yes[142]Disabled by default at compile time
NSSYes[143]No Yes No[144][n 3]Yes[145]No No Yes[146]Yes No[92][93]Yes[147]Disabled by default
OpenSSLYes[148]Disabled by default[57]Yes No Disabled by default[57]Disabled by default[149]No Disabled by default[57]Disabled by default[57]Yes[94]Yes[57]Disabled by default
RustlsYes[60]No No No No No No No No No Yes[60]Not implemented
Schannel XP/2003No No 2003 only[150]No No No No No Yes No[95]No Disabled by default
Schannel Vista/2008, 2008R2, 2012No No Yes No No No No No Yes No[95]No Disabled by default
Schannel 7, 8, 8.1/2012R2Yes except ECDHE_RSA
[97][98]		No Yes No No No No No Yes No[95]No Disabled by default
Schannel 10[151]Yes No Yes No No No No No Yes No[95]No Disabled by default
Secure Transport OS X 10.6 - 10.10 No No Yes No No No No No Yes No No Disabled by default
Secure Transport OS X 10.11 Yes No Yes No No No No No Yes No No Disabled by default
wolfSSLYes Yes Yes No No No No No Yes No Yes Disabled by default
Erlang/OTP SSL application Yes No Yes No No No No No Disabled by default No Experimental Disable by default
ImplementationBlock cipher with mode of operationStream cipherNone
AESGCM
[126]		AESCCM
[127]		AESCBCCamelliaGCM
[128]		CamelliaCBC
[129][128]		ARIAGCM
[130]		ARIACBC
[130]		SEEDCBC
[131]		3DES EDECBC
(insecure)[132]		GOST 28147-89CNT
(proposed)
[89][n 1]		ChaCha20-Poly1305
[133]		Null
(insecure)
[n 2]
Notes
  1. ^ abThis algorithm is not defined yet as TLS cipher suites in RFCs, is proposed in drafts.
  2. ^ abauthentication only, no encryption
  3. ^This algorithm is implemented in an NSS fork used by Pale Moon.

Obsolete algorithms

[edit]
ImplementationBlock cipher with mode of operationStream cipher
IDEACBC
[n 1](insecure)[153]		DESCBC
(insecure)
[n 1]		DES-40 CBC
(EXPORT, insecure)
[n 2]		RC2-40 CBC
(EXPORT, insecure)
[n 2]		RC4-128
(insecure)
[n 3]		RC4-40
(EXPORT, insecure)
[n 4][n 2]
BotanNo No No No No[154]No
BoringSSLNo No No No Disabled by default at compile time No
BSAFE SSL-J No Disabled by default Disabled by default No Disabled by default Disabled by default
cryptlibNo Disabled by default at compile time No No Disabled by default at compile time No
GnuTLSNo No No No Disabled by default[42]No
JSSENo Disabled by default Disabled by default No Disabled by default Disabled by default [155]
LibreSSLYes Yes No[46]No[46]Yes No[46]
MatrixSSLYes No No No Disabled by default No
Mbed TLSNo Disabled by default at compile time No No Disabled by default at compile time[51]No
NSSYes Disabled by default Disabled by default Disabled by default Lowest priority[156][157]Disabled by default
OpenSSLDisabled by default[57]Disabled by default No[57]No[57]Disabled by default No[57]
RustlsNo No No No No No
Schannel XP/2003No Yes Yes Yes Yes Yes
Schannel Vista/2008No Disabled by default Disabled by default Disabled by default Yes Disabled by default
Schannel 7/2008R2No Disabled by default Disabled by default Disabled by default Lowest priority
will be disabled soon[158]		Disabled by default
Schannel 8/2012No Disabled by default Disabled by default Disabled by default Only as fallback Disabled by default
Schannel 8.1/2012R2No Disabled by default Disabled by default Disabled by default Disabled by default[158]Disabled by default
Schannel 10[151]No Disabled by default Disabled by default Disabled by default Disabled by default[158]Disabled by default
Secure Transport OS X 10.6 Yes Yes Yes Yes Yes Yes
Secure Transport OS X 10.7 Yes Un­known Un­known Un­known Yes Un­known
Secure Transport OS X 10.8-10.9 Yes Disabled by default Disabled by default Disabled by default Yes Disabled by default
Secure Transport OS X 10.10-10.11 Yes Disabled by default Disabled by default Disabled by default Lowest priority Disabled by default
Secure Transport macOS 10.12 Yes Disabled by default Disabled by default Disabled by default Disabled by default Disabled by default
wolfSSLDisabled by default[159]No No No Disabled by default No
Erlang/OTP SSL application no Disabled by default no no Disabled by default no
ImplementationBlock cipher with mode of operationStream cipher
IDEACBC
[n 1](insecure)[153]		DESCBC
(insecure)
[n 1]		DES-40 CBC
(EXPORT, insecure)
[n 2]		RC2-40 CBC
(EXPORT, insecure)
[n 2]		RC4-128
(insecure)
[n 3]		RC4-40
(EXPORT, insecure)
[n 4][n 2]
Notes
  1. ^ abcdIDEA and DES have been removed from TLS 1.2.[152]
  2. ^ abcdef40 bits strength of cipher suites were designed to operate at reduced key lengths in order to comply with US regulations about the export of cryptographic software containing certain strong encryption algorithms (see Export of cryptography from the United States). These weak suites are forbidden in TLS 1.1 and later.
  3. ^ abThe RC4 attacks weaken or break RC4 used in SSL/TLS. Use of RC4 is prohibited by RFC 7465.
  4. ^ abThe RC4 attacks weaken or break RC4 used in SSL/TLS.

Supported elliptic curves

[edit]

This section lists the supported elliptic curves by each implementation.

Defined curves in RFC 8446 (for TLS 1.3) and RFC 8422, 7027 (for TLS 1.2 and earlier)

[edit]
applicable TLS version TLS 1.3 and earlierTLS 1.2 and earlier
Implementation secp256r1
prime256v1
NIST P-256
(0x0017,[160] 23[161]) 		secp384r1
NIST P-384
(0x0018,[160] 24[161]) 		secp521r1
NIST P-521
(0x0019,[160] 25[161]) 		X25519
(0x001D,[160] 29[161]) 		X448
(0x001E,[160] 30[161]) 		brainpoolP256r1
(26)[162]		brainpoolP384r1
(27)[162]		brainpoolP512r1
(28)[162]
BotanYes Yes Yes Yes[134]No Yes[163]Yes[163]Yes[163]
BoringSSLYes Yes Yes (disabled by default) Yes No No No No
BSAFEYes Yes Yes No No No No No
GnuTLSYes Yes Yes Yes[164]Yes[165]No No No
JSSEYes Yes Yes Yes
x25519: JDK 13+[166]
Ed25519:JDK 15+[167]		Yes
x448: JDK 13+[166]
Ed448: JDK 15+[167]		No No No
LibreSSLYes Yes Yes Yes[168]No Yes[46]Yes[46]Yes[46]
MatrixSSLYes Yes Yes TLS 1.3 only[169]No Yes Yes Yes
Mbed TLSYes Yes Yes Primitive only[170]Primitive only[171]Yes[172]Yes[172]Yes[172]
NSSYes Yes Yes Yes[173]No[174][175]No[176]No[176]No[176]
OpenSSLYes Yes Yes Yes[177][178]Yes[179][180]Yes[59]Yes[59]Yes[59]
RustlsYes Yes No Yes No No No No
Schannel Vista/2008, 7/2008R2, 8/2012, 8.1/2012R2, 10Yes Yes Yes No No No No No
Secure TransportYes Yes Yes No No No No No
wolfSSLYes Yes Yes Yes[181]Yes[182]Yes Yes Yes
Erlang/OTP SSL application Yes Yes Yes No No Yes Yes Yes
Implementation secp256r1
prime256v1
NIST P-256
(0x0017, 23) 		secp384r1
NIST P-384
(0x0018, 24) 		secp521r1
NIST P-521
(0x0019, 25) 		X25519
(0x001D, 29) 		X448
(0x001E, 30) 		brainpoolP256r1
(26) 		brainpoolP384r1
(27) 		brainpoolP512r1
(28)

Deprecated curves in RFC 8422

[edit]
Implementation sect163k1
NIST K-163
(1)[88]		sect163r1
(2)[88]		sect163r2
NIST B-163
(3)[88]		sect193r1
(4)[88]		sect193r2
(5)[88]		sect233k1
NIST K-233
(6)[88]		sect233r1
NIST B-233
(7)[88]		sect239k1
(8)[88]		sect283k1
NIST K-283
(9)[88]		sect283r1
NIST B-283
(10)[88]		sect409k1
NIST K-409
(11)[88]		sect409r1
NIST B-409
(12)[88]		sect571k1
NIST K-571
(13)[88]		sect571r1
NIST B-571
(14)[88]
BotanNo No No No No No No No No No No No No No
BoringSSLNo No No No No No No No No No No No No No
BSAFEYes No Yes No No Yes Yes No Yes Yes Yes Yes Yes Yes
GnuTLSNo No No No No No No No No No No No No No
JSSENotes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]
LibreSSLYes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
MatrixSSLNo No No No No No No No No No No No No No
Mbed TLSNo No No No No No No No No No No No No No
NSSYes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
OpenSSLYes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
RustlsNo No No No No No No No No No No No No No
Schannel Vista/2008, 7/2008R2, 8/2012, 8.1/2012R2, 10No No No No No No No No No No No No No No
Secure TransportNo No No No No No No No No No No No No No
wolfSSLNo No No No No No No No No No No No No No
Erlang/OTP SSL application Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Implementation sect163k1
NIST K-163
(1) 		sect163r1
(2) 		sect163r2
NIST B-163
(3) 		sect193r1
(4) 		sect193r2
(5) 		sect233k1
NIST K-233
(6) 		sect233r1
NIST B-233
(7) 		sect239k1
(8) 		sect283k1
NIST K-283
(9) 		sect283r1
NIST B-283
(10) 		sect409k1
NIST K-409
(11) 		sect409r1
NIST B-409
(12) 		sect571k1
NIST K-571
(13) 		sect571r1
NIST B-571
(14)
Implementation secp160k1
(15)[88]		secp160r1
(16)[88]		secp160r2
(17)[88]		secp192k1
(18)[88]		secp192r1
prime192v1
NIST P-192
(19)[88]		secp224k1
(20)[88]		secp224r1
NIST P-244
(21)[88]		secp256k1
(22)[88]		arbitrary prime curves
(0xFF01)[88][185]		arbitrary char2 curves
(0xFF02)[88][185]
BotanNo No No No No No No No No No
BoringSSLNo No No No No No Yes No No No
BSAFENo No No No Yes No Yes No No No
GnuTLSNo No No No Yes No Yes No No No
JSSENotes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]Notes[a][b]No No
LibreSSLYes Yes Yes Yes Yes Yes Yes Yes No No
MatrixSSLNo No No No Yes No Yes No No No
Mbed TLSNo No No Yes Yes Yes Yes Yes No No
NSSYes Yes Yes Yes Yes Yes Yes Yes No No
OpenSSLYes Yes Yes Yes Yes Yes Yes Yes No No
RustlsNo No No No No No No No No No
Schannel Vista/2008, 7/2008R2, 8/2012, 8.1/2012R2, 10No No No No No No No No No No
Secure TransportNo No No No Yes No No No No No
wolfSSLYes Yes Yes Yes Yes Yes Yes Yes No No
Erlang/OTP SSL application Yes Yes Yes Yes Yes Yes Yes Yes No No
Implementation secp160k1
(15) 		secp160r1
(16) 		secp160r2
(17) 		secp192k1
(18) 		secp192r1
prime192v1
NIST P-192
(19) 		secp224k1
(20) 		secp224r1
NIST P-244
(21) 		secp256k1
(22) 		arbitrary prime curves
(0xFF01) 		arbitrary char2 curves
(0xFF02)
Notes
  1. ^ abcdefghijklmnopqrstuvThese elliptic curves were "Disabled by Default" in current JDK families as part of JDK-8236730.[183]
  2. ^ abcdefghijklmnopqrstuvThese elliptic curves were subsequently removed in JDK 16+ as part of JDK-8252601.[184]

Data integrity

[edit]
Implementation HMAC-MD5HMAC-SHA1HMAC-SHA256/384AEADGOST 28147-89 IMIT
[89]		GOST R 34.11-94
[89]
BotanNo Yes Yes Yes No No
BSAFEYes Yes Yes Yes No No
cryptlibYes Yes Yes Yes No No
GnuTLSYes Yes Yes Yes No No
JSSEDisabled by Default Yes Yes Yes No No
LibreSSLYes Yes Yes Yes Yes
[90]		Yes
[90]
MatrixSSLYes Yes Yes Yes No No
Mbed TLSYes Yes Yes Yes No No
NSSYes Yes Yes Yes No
[92][93]		No
[92][93]
OpenSSLYes Yes Yes Yes Yes
[94]		Yes
[94]
RustlsNo No No Yes No No
Schannel XP/2003, Vista/2008Yes Yes XP SP3, 2003 SP2 via hotfix
[186]		No No
[95]		No
[95]
Schannel 7/2008R2, 8/2012, 8.1/2012R2Yes Yes Yes except ECDHE_RSA
[97][98][99]		No
[95]		No
[95]
Schannel 10Yes Yes Yes Yes
[151]		No
[95]		No
[95]
Secure TransportYes Yes Yes Yes No No
wolfSSLYes Yes Yes Yes No No
Erlang/OTP SSL application Yes Yes Yes Yes No No
Implementation HMAC-MD5 HMAC-SHA1 HMAC-SHA256/384 AEAD GOST 28147-89 IMIT GOST R 34.11-94

Compression

[edit]

Note the CRIME security exploit takes advantage of TLS compression, so conservative implementations do not enable compression at the TLS level. HTTP compression is unrelated and unaffected by this exploit, but is exploited by the related BREACH attack.

Implementation DEFLATE[187]
(insecure)
BotanNo
BSAFE[41]No
cryptlibNo
GnuTLSDisabled by default
JSSENo
LibreSSLNo[46]
MatrixSSLDisabled by default
Mbed TLSDisabled by default
NSSDisabled by default
OpenSSLDisabled by default
RustlsNo
SchannelNo
Secure TransportNo
wolfSSLDisabled by default
Erlang/OTP SSL application No
Implementation DEFLATE

Extensions

[edit]

In this section the extensions each implementation supports are listed. Note that the Secure Renegotiation extension is critical for HTTPS client security [citation needed]. TLS clients not implementing it are vulnerable to attacks, irrespective of whether the client implements TLS renegotiation.

Implementation Secure Renegotiation
[188]		Server Name Indication
[189]		ALPN
[190]		Certificate Status Request
[189]		OpenPGP
[191]		Supplemental Data
[192]		Session Ticket
[193]		Keying Material Exporter
[194]		Maximum Fragment Length
[189]		Encrypt-then-MAC
[29]		TLS Fallback SCSV
[195]		Extended Master Secret
[196]		ClientHello Padding
[197]		Raw Public Keys
[198]
BotanYes Yes Yes[199]No No No Yes Yes Yes Yes Yes[200]Yes[201]No Un­known
BSAFE SSL-J Yes Yes No Yes No No No No Yes No No Yes No No
cryptlibYes Yes No No No Yes No No No[202]Yes Yes Yes No Un­known
GnuTLSYes Yes Yes[203]Yes No[204]Yes Yes Yes Yes Yes[42]Yes[205]Yes[42]Yes[206]Yes[207]
JSSEYes Yes[72]Yes[72]Yes No No Yes No Yes No No Yes No No
LibreSSLYes Yes Yes[208]Yes No No? Yes Yes? No No Server side only[209]No Yes No
MatrixSSLYes Yes Yes[210]Yes[139]No No Yes No Yes No Yes[139]Yes[139]No Un­known
Mbed TLSYes Yes Yes[211]No No No Yes No Yes Yes[212]Yes[212]Yes[212]No No
NSSYes Yes Yes[213]Yes No[214]No Yes Yes No No[215]Yes[216]Yes[217]Yes[213]Un­known
OpenSSLYes Yes Yes[59]Yes No No? Yes Yes Yes Yes Yes[218]Yes[57]Yes[219]Yes[220]
RustlsYes Yes Yes Yes No No Yes Yes No No No [221]Yes No Un­known
Schannel XP/2003No No No No No Yes No No No No No No No Un­known
Schannel Vista/2008Yes Yes No No No Yes No No No No No Yes[222]No Un­known
Schannel 7/2008R2Yes Yes No Yes No Yes No No No No No Yes[222]No Un­known
Schannel 8/2012Yes Yes No Yes No Yes Client side only[223]No No No No Yes[222]No Un­known
Schannel 8.1/2012R2, 10Yes Yes Yes Yes No Yes Yes[223]No No No No Yes[222]No Un­known
Secure TransportYes Yes Un­known No No Yes No No No No No No No Un­known
wolfSSLYes Yes Yes[159]Yes No No Yes No Yes Yes[224]No Yes No Yes[225]
Erlang/OTP SSL application Yes Yes Yes No No No No No No No Yes No No Un­known
Implementation Secure Renegotiation Server Name Indication ALPN Certificate Status Request OpenPGP Supplemental Data Session Ticket Keying Material Exporter Maximum Fragment Length Encrypt-then-MAC TLS Fallback SCSV Extended Master Secret ClientHello Padding Raw Public Keys

Assisted cryptography

[edit]

This section lists the known ability of an implementation to take advantage of CPU instruction sets that optimize encryption, or utilize system specific devices that allow access to underlying cryptographic hardware for acceleration or for data separation.

Implementation PKCS #11 deviceIntel AES-NIVIA PadLockARMv8-AIntel SHANXP CAAMTPM 2.0NXP SE050Microchip ATECCSTMicro STSAFEMaxim MAXQ
BotanYes[226]Yes No Yes No Yes[227]No No No No
BSAFE SSL-J [a][b]Yes Yes No Yes Yes No No[230]No No No No
cryptlibYes Yes Yes No No No No No
Crypto++Yes Yes No No No No
GnuTLSYes Yes Yes Yes[231]Yes No[232]No No No No
JSSEYes Yes[233]No No No No No No No
LibreSSLNo Yes Yes No No No No No
MatrixSSLYes Yes No Yes No No No No No
Mbed TLSYes Yes[234]Yes No No Partial[235]Yes[236]No No
NSSYes[237]Yes[238]No[239]No No No No No No
OpenSSLYes[240][241][242]Yes Yes Yes[243]Yes Partial Partial[244][245]Partial[246]No Partial[247]No
RustlsYes Yes Yes No No No No
SchannelNo Yes No No No No No No No
Secure TransportNo Yes[248][249]No Yes No No No No No
wolfSSLYes Yes No Yes Yes[250]Yes[251][252]Yes[253]Yes[254]Yes[255]Yes[256]
Implementation PKCS #11 device Intel AES-NI VIA PadLock ARMv8-A Intel SHA NXP CAAM TPM 2.0 NXP SE050 Microchip ATECC STMicro STSAFE Maxim MAXQ
  1. ^Pure Java implementations relies on JVM processor optimization capabilities, such as OpenJDK support for AES-NI[228]
  2. ^BSAFE SSL-J can be configured to run in native mode, using BSAFE Crypto-C Micro Edition to benefit from processor optimization.[229]

System-specific backends

[edit]

This section lists the ability of an implementation to take advantage of the available operating system specific backends, or even the backends provided by another implementation.

Implementation /dev/crypto af_alg Windows CSPCommonCrypto OpenSSL engine
BotanNo No No No Partial
BSAFENo No No No No
cryptlibNo No No No No
GnuTLSYes Yes No No No
JSSENo No Yes No No
LibreSSLNo No No No No[257]
MatrixSSLNo No No Yes Yes
Mbed TLSNo No No No No
NSSNo No No No No
OpenSSLYes Yes No No Yes
RustlsNo Yes [258]No No No
SchannelNo No Yes No No
Secure TransportNo No No Yes No
wolfSSLYes Yes Partial No Yes[259]
Erlang/OTP SSL application No No No No Yes
Implementation /dev/crypto af_alg Windows CSP CommonCrypto OpenSSL engine

Cryptographic module/token support

[edit]
Implementation TPM support Hardware token support Objects identified via
BotanPartial[201]PKCS #11
BSAFE SSL-J No No
cryptlibNo PKCS #11User-defined label
GnuTLSYes PKCS #11RFC 7512 PKCS #11 URLs[260]
JSSENo PKCS11Java Cryptography Architecture,
Java Cryptography Extension
LibreSSLYes PKCS #11 (via 3rd party module) Custom method
MatrixSSLNo PKCS #11
Mbed TLSNo PKCS #11 (via libpkcs11-helper) or standard hooks Custom method
NSSNo PKCS #11
OpenSSLYes PKCS #11 (via 3rd party module)[261]RFC 7512 PKCS #11 URLs[260]
RustlsNo Microsoft CryptoAPI[262]Custom method
SchannelNo Microsoft CryptoAPIUUID, User-defined label
Secure Transport
wolfSSLYes PKCS #11
Implementation TPM support Hardware token support Objects identified via

Code dependencies

[edit]
Implementation Dependencies Optional dependencies
BotanC++20 SQLite
zlib (compression)
bzip2 (compression)
liblzma (compression)
boost
trousers (TPM)
GnuTLSlibc
nettle
gmp 		zlib (compression)
p11-kit (PKCS #11)
trousers (TPM)
libunbound (DANE)
JSSEJava
MatrixSSLnone zlib (compression)
MatrixSSL-openlibc or newlib
Mbed TLSlibc libpkcs11-helper (PKCS #11)
zlib (compression)
NSSlibc
libnspr4
libsoftokn3
libplc4
libplds4 		zlib (compression)
Rustlsrust core library rust std library
zlib-rs (compression)
brotli (compression)
ring (cryptography)
aws-lc-rs (cryptography)
OpenSSLlibc zlib (compression)
brotli (compression)
zstd (compression)
wolfSSLNone libc
zlib (compression)
Erlang/OTP SSL application libcrypto (from OpenSSL), Erlang/OTP and its public_key, crypto and asn1 applications Erlang/OTP -inets (http fetching of CRLs)
Implementation Dependencies Optional dependencies

Development environment

[edit]
Implementation Namespace Build tools API manual Crypto back-end OpenSSL compatibility Layer[clarify]
BotanBotan::TLS Makefile Sphinx Included (pluggable) No
Bouncy Castleorg.bouncycastle Java Development Environment Programmers reference manual (PDF) Included (pluggable) No
BSAFE SSL-J com.rsa.asn1[a]

com.rsa.certj[b]
com.rsa.jcp[c]
com.rsa.jsafe[d]
com.rsa.ssl[e]
com.rsa.jsse[f]

Java class loaderJavadoc, Developer's guide (HTML) Included No
cryptlibcrypt* makefile, MSVC project workspaces Programmers reference manual (PDF), architecture design manual (PDF) Included (monolithic) No
GnuTLSgnutls_* Autoconf, automake, libtool Manual and API reference (HTML, PDF) External, libnettleYes (limited)
JSSEjavax.net.ssl

sun.security.ssl

Makefile API Reference (HTML) +

JSSE Reference Guide

Java Cryptography Architecture,
Java Cryptography Extension		No
MatrixSSLmatrixSsl_*

ps*

Makefile, MSVC project workspaces, Xcode projects for OS X and iOS API Reference (PDF), Integration Guide Included (pluggable) Yes (Subset: SSL_read, SSL_write, etc.)
Mbed TLSmbedtls_ssl_*

mbedtls_sha1_*
mbedtls_md5_*
mbedtls_x509*
...

Makefile, CMake, MSVC project workspaces, yotta API Reference + High Level and Module Level Documentation (HTML) Included (monolithic) No
NSSCERT_*

SEC_*
SECKEY_*
NSS_*
PK11_*
SSL_*
...

Makefile Manual (HTML) Included, PKCS#11 based[263]Yes (separate package called nss_compat_ossl[264])
OpenSSLSSL_*

SHA1_*
MD5_*
EVP_*
...

Makefile Man pages Included (monolithic) —
Rustlsrustls::cargo API reference and design manualTwo options included (pluggable) Yes[265] (subset)
wolfSSLwolfSSL_*

CyaSSL_*
SSL_*

Autoconf, automake, libtool, MSVC project workspaces, XCode projects, CodeWarrior projects, MPLAB X projects, Keil, IAR, Clang, GCC, e2Studio Manual and API Reference (HTML, PDF) Included (monolithic) Yes (about 60% of API)
Implementation Namespace Build tools API manual Crypto back-end OpenSSL compatibility layer
  1. ^
    ASN.1 manipulation classes
  2. ^
    Cert-J proprietary API
  3. ^
    Certificate Path manipulation classes
  4. ^
    Crypto-J proprietary API, JCE, CMS and PKI
    5. API
  5. ^
    SSLJ proprietary API
  6. ^
    JSSE API

Portability concerns

[edit]
Implementation Platform requirements Network requirements Thread safety Random seed Able to cross-compile No OS (bare metal) Supported operating systems
BotanC++11 None Thread-safe Platform-dependent Yes Windows, Linux, macOS, Android, iOS, FreeBSD, OpenBSD, Solaris, AIX, HP-UX, QNX, BeOS, IncludeOS
BSAFE SSL-J Java Java SE network components Thread-safe Depends on java.security.SecureRandom Yes No FreeBSD, Linux, macOS, Microsoft Windows, Android, AIX, Solaris
cryptlibC89 POSIX send() and recv(). API to supply your own replacement Thread-safe Platform-dependent, including hardware sources Yes Yes AMX, BeOS, ChorusOS, DOS, eCos, FreeRTOS/OpenRTOS, uItron, MVS, OS/2, Palm OS, QNX Neutrino, RTEMS, Tandem NonStop, ThreadX, uC/OS II, Unix (AIX, FreeBSD, HPUX, Linux, macOS, Solaris, etc.), VDK, VM/CMS, VxWorks, Win16, Win32, Win64, WinCE/PocketPC/etc, XMK
GnuTLSC89 POSIX send() and recv(). API to supply your own replacement. Thread-safe, needs custom mutex hooks if neither POSIX nor Windows threads are available. Platform dependent Yes No Generally any POSIX platforms or Windows, commonly tested platforms include Linux, Win32/64, macOS, Solaris, OpenWRT, FreeBSD, NetBSD, OpenBSD.
JSSEJava Java SE network components Thread-safe Depends on java.security.SecureRandom Yes Java based, platform-independent
MatrixSSLC89 None Thread-safe Platform dependent Yes Yes All
Mbed TLSC89 POSIX read() and write(). API to supply your own replacement. Threading layer available (POSIX or own hooks) Random seed set through entropy pool Yes Yes Known to work on: Win32/64, Linux, macOS, Solaris, FreeBSD, NetBSD, OpenBSD, OpenWRT, iPhone (iOS), Xbox, Android, eCos, SeggerOS, RISC OS
NSSC89, NSPR[266]NSPR[266] PR_Send() and PR_Recv(). API to supply your own replacement. Thread-safe Platform dependent[267]Yes (but cumbersome) No AIX, Android, FreeBSD, NetBSD, OpenBSD, BeOS, HP-UX, IRIX, Linux, macOS, OS/2, Solaris, OpenVMS, Amiga DE, Windows, WinCE, Sony PlayStation
RustlsRust (programming language)None Thread-safe Platform dependent Yes Yes All supported by Rust (programming language)
OpenSSLC89 None Thread-safe Platform dependent Yes No Unix-like, DOS (with djgpp), Windows, OpenVMS, NetWare, eCos
wolfSSLC89 POSIX send() and recv(). API to supply your own replacement. Thread-safe Random seed set through wolfCrypt Yes Yes Win32/64, Linux, macOS, Solaris, ThreadX, VxWorks, FreeBSD, NetBSD, OpenBSD, embedded Linux, Yocto Project, OpenEmbedded, WinCE, Haiku, OpenWRT, iPhone (iOS), Android, Nintendo Wii and Gamecube through DevKitPro, QNX, MontaVista, NonStop, TRON/ITRON/μITRON, eCos, Micrium μC/OS-III, FreeRTOS, SafeRTOS, NXP/Freescale MQX, Nucleus, TinyOS, HP/UX, AIX, ARC MQX, Keil RTX, TI-RTOS, uTasker, embOS, INtime, Mbed, uT-Kernel, RIOT, CMSIS-RTOS, FROSTED, Green Hills INTEGRITY, TOPPERS, PetaLinux, Apache mynewt
Implementation Platform requirements Network requirements Thread safety Random seed Able to cross-compile No OS (bare metal) Supported operating systems

See also

[edit]
  • SCTP — with DTLS support
  • DCCP — with DTLS support
  • SRTP — with DTLS support (DTLS-SRTP) and Secure Real-Time Transport Control Protocol (SRTCP)

References

[edit]
  1. ^"Botan: Release Notes". Retrieved 2025-01-22.
  2. ^"Download Bouncy Castle for Java - bouncycastle.org". 2025-01-14. Retrieved 2025-02-16.
  3. ^"Download Bouncy Castle for Java LTS - bouncycastle.org". 2024-11-08. Retrieved 2024-11-29.
  4. ^"Download Bouncy Castle for Java FIPS - bouncycastle.org". 2024-07-30. Retrieved 2024-11-29.
  5. ^"Download Bouncy Castle for C# .NET - bouncycastle.org". 2025-02-14. Retrieved 2024-02-16.
  6. ^"Download Bouncy Castle for C# .NET FIPS - bouncycastle.org". 2024-03-11. Retrieved 2024-11-29.
  7. ^"Dell BSAFE SSL-J 6.6 Release Advisory". Dell.
  8. ^"Dell BSAFE SSL-J 7.3.1 Release Advisory". Dell.
  9. ^"Dell BSAFE Micro Edition Suite 5.0.3 Release Advisory".
  10. ^Gutmann, Peter (2019). "Downloading". cryptlib. University of Auckland School of Computer Science. Retrieved 2019-08-07.
  11. ^Daiki Ueno (8 February 2025). https://lists.gnupg.org/pipermail/gnutls-help/2025-February/004875.html. Retrieved 13 February 2025.{{cite web}}: Missing or empty |title= (help)
  12. ^"Java™ SE Development Kit 23, 23.0.1 Release Notes". Oracle Corporation. Retrieved 2024-10-16.
  13. ^"Java™ SE Development Kit 21, 21.0.5 Release Notes". Oracle Corporation. Retrieved 2024-10-16.
  14. ^"Java™ SE Development Kit 17, 17.0.13 Release Notes". Oracle Corporation. Retrieved 2024-10-16.
  15. ^"Java™ SE Development Kit 11, 11.0.25 Release Notes". Oracle Corporation. Retrieved 2024-10-16.
  16. ^"Java™ SE Development Kit 8, Update 431 Release Notes". Oracle Corporation. Retrieved 2024-10-16.
  17. ^"LibreSSL 4.0.0 Released". 14 October 2024. Retrieved 15 October 2024.
  18. ^The features listed are for the closed source version
  19. ^"MatrixSSL 4.2.2 Open release". 2019-09-11. Retrieved 2020-03-20.
  20. ^"Release 3.6.3". 24 March 2025. Retrieved 27 March 2025.
  21. ^ ab"NSS:Release versions". Mozilla Wiki. Retrieved 7 November 2022.
  22. ^"OpenSSL 3.5.0". 8 April 2025. Retrieved 8 April 2025.
  23. ^"rustls/rustls releases". Github. Retrieved 1 April 2025.
  24. ^"wolfSSL product description". Retrieved 2016-05-03.
  25. ^"wolfSSL Embedded SSL/TLS". Retrieved 2016-05-03.
  26. ^"wolfSSL ChangeLog". 2025-04-24. Retrieved 2025-04-25.
  27. ^Prohibiting Secure Sockets Layer (SSL) Version 2.0. doi:10.17487/RFC6176. RFC6176.
  28. ^Vaudenay, Serge (2001). "CBC-Padding: Security Flaws in SSL, IPsec, WTLS,..."(PDF).
  29. ^ abEncrypt-then-MAC for Transport Layer Security (TLS) and Datagram Transport Layer Security. doi:10.17487/RFC7366. RFC7366.
  30. ^"Rizzo/Duong BEAST Countermeasures". Archived from the original on 2016-03-11.
  31. ^Möller, Bodo; Duong, Thai; Kotowicz, Krzysztof (September 2014). "This POODLE Bites: Exploiting The SSL 3.0 Fallback"(PDF). Archived from the original(PDF) on 15 October 2014. Retrieved 15 October 2014.
  32. ^"TLSv1.2's Major Differences from TLSv1.1". The Transport Layer Security (TLS) Protocol Version 1.2. sec. 1.2. doi:10.17487/RFC5246. RFC5246.
  33. ^ abcRFC 6347. doi:10.17487/RFC6347.
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  35. ^ abRFC 6101. doi:10.17487/RFC6101.
  36. ^ abRFC 2246. doi:10.17487/RFC2246.
  37. ^ abRFC 4346. doi:10.17487/RFC4346.
  38. ^ abcdefghijklRFC 5246. doi:10.17487/RFC5246.
  39. ^ abRFC 4347. doi:10.17487/RFC4347.
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  88. ^ abcdefghijklmnopqrstuvwxyzaaabacadaeafagahRFC 4492. doi:10.17487/RFC4492.
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  99. ^ abcdefRFC 5054. doi:10.17487/RFC5054.
  100. ^ abcdefRFC 4279. doi:10.17487/RFC4279.
  101. ^ abRFC 5489. doi:10.17487/RFC5489.
  102. ^ abRFC 2712. doi:10.17487/RFC2712.
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  104. ^ abc"LibreSSL 2.0.4 released". Retrieved 2014-08-04.
  105. ^ abc"Bug 405155 - add support for TLS-SRP, rfc5054". Mozilla. Retrieved 2014-01-25.
  106. ^ abcd"Bug 306435 - Mozilla browsers should support the new IETF TLS-PSK protocol to help reduce phishing". Mozilla. Retrieved 2014-01-25.
  107. ^"Bug 1170510 - Implement NSS server side support for DH_anon". Mozilla. Retrieved 2015-06-03.
  108. ^"Bug 236245 - Update ECC/TLS to conform to RFC 4492". Mozilla. Retrieved 2014-06-09.
  109. ^"Changes between 0.9.6h and 0.9.7 [31 Dec 2002]". Retrieved 2016-01-29.
  110. ^ ab"Changes between 0.9.8n and 1.0.0 [29 Mar 2010]". Retrieved 2016-01-29.
  111. ^"wolfSSL (Formerly CyaSSL) Release 3.9.0 (03/18/2016)". 2016-03-18. Retrieved 2016-04-05.
  112. ^RFC 5280. doi:10.17487/RFC5280.
  113. ^RFC 3280. doi:10.17487/RFC3280.
  114. ^RFC 2560. doi:10.17487/RFC2560.
  115. ^RFC 6698. doi:10.17487/RFC6698.
  116. ^RFC 7218. doi:10.17487/RFC7218.
  117. ^Laurie, B.; Langley, A.; Kasper, E. (June 2013). Certificate Transparency. IETF. doi:10.17487/RFC6962. ISSN 2070-1721. RFC 6962. Retrieved 2020-08-31.
  118. ^"MatrixSSL 3.8.3". Archived from the original on 2017-01-19. Retrieved 2017-01-18.
  119. ^"mbed TLS 2.0 defaults implement best practices". Retrieved 2017-01-18.
  120. ^"Bug 672600 - Use DNSSEC/DANE chain stapled into TLS handshake in certificate chain validation". Mozilla. Retrieved 2014-06-18.
  121. ^"CRL Validation · Issue #3499 · aws/s2n-tls". GitHub. Retrieved 2022-11-01.
  122. ^"OCSP digest support for SHA-256 · Issue #2854 · aws/s2n-tls · GitHub". GitHub. Retrieved 2022-11-01.
  123. ^"[RFC 6962] s2n Client can Validate Signed Certificate Timestamp TLS Extension · Issue #457 · aws/s2n-tls · GitHub". GitHub. Retrieved 2022-11-01.
  124. ^ ab"How Certificate Revocation Works". Microsoft TechNet. Microsoft. March 16, 2012. Retrieved July 10, 2013.
  125. ^ ab
  126. ^ abRFC 6655, RFC 7251
  127. ^ abcdRFC 6367. doi:10.17487/RFC6367.
  128. ^ abRFC 5932. doi:10.17487/RFC5932.
  129. ^ abcdRFC 6209. doi:10.17487/RFC6209.
  130. ^ abRFC 4162. doi:10.17487/RFC4162.
  131. ^ ab"Sweet32: Birthday attacks on 64-bit block ciphers in TLS and OpenVPN". sweet32.info.
  132. ^ abRFC 7905. doi:10.17487/RFC7905.
  133. ^ ab"Version 1.11.12, 2015-01-02 — Botan". 2015-01-02. Retrieved 2015-01-09.
  134. ^"gnutls 3.6.0". 2017-09-21. Retrieved 2018-01-07.
  135. ^"gnutls 3.4.12". 2016-05-20. Archived from the original on 2016-10-13. Retrieved 2016-05-29.
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  137. ^"JDK 12 Release Notes". Retrieved 2024-01-14.
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  139. ^"PolarSSL 1.3.8 release notes". Archived from the original on 2014-07-14.
  140. ^ ab"Mbed TLS 2.11.0, 2.7.4 and 2.1.13 released". Retrieved 2018-08-30.
  141. ^"Mbed TLS 2.12.0, 2.7.5 and 2.1.14 released". Retrieved 2018-08-30.
  142. ^"NSS 3.25 release notes". Mozilla Developer Network. Mozilla. Archived from the original on 2021-12-07. Retrieved 2016-07-01.
  143. ^"Bug 940119 - libssl does not support any TLS_ECDHE_*_CAMELLIA_*_GCM cipher suites". Mozilla. Retrieved 2013-11-19.
  144. ^"NSS 3.12 is released". Retrieved 2013-11-19.
  145. ^"NSS 3.12.3 Release Notes". Mozilla Developer Network. Mozilla. Archived from the original on 2023-04-02. Retrieved 2023-04-01.
  146. ^"NSS 3.23 release notes". Mozilla Developer Network. Mozilla. Archived from the original on 2021-04-14. Retrieved 2016-03-09.
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  149. ^"Cipher Suites in TLS/SSL (Schannel SSP) - Win32 apps". docs.microsoft.com. 14 July 2023.
  150. ^ abc"Qualys SSL Labs - Projects / User Agent Capabilities: IE 11 / Win 10 Preview". dev.ssllabs.com. Archived from the original on 2023-07-14.
  151. ^RFC 5469
  152. ^ ab"Sweet32: Birthday attacks on 64-bit block ciphers in TLS and OpenVPN".
  153. ^"Version 1.11.15, 2015-03-08 — Botan". 2015-03-08. Retrieved 2015-03-11.
  154. ^"Java Cryptography Architecture Oracle Providers Documentation". docs.oracle.com.
  155. ^"NSS 3.15.3 release notes". Mozilla Developer Network. Mozilla. Archived from the original on 2014-06-05. Retrieved 2014-07-13.
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  157. ^ abc"RC4 is now disabled in Microsoft Edge and Internet Explorer 11 - Microsoft Edge Dev BlogMicrosoft Edge Dev Blog". blogs.windows.com. 2016-08-09.
  158. ^ ab"wolfSSL (Formerly CyaSSL) Release 3.7.0 (10/26/2015)". 2015-10-26. Retrieved 2015-11-19.
  159. ^ abcdeRFC 8446
  160. ^ abcdeRFC 8422
  161. ^ abcRFC 7027
  162. ^ abc"Version 1.11.5, 2013-11-10 — Botan". 2013-11-10. Retrieved 2015-01-23.
  163. ^"An overview of the new features in GnuTLS 3.5.0". 2016-05-02. Retrieved 2016-12-09.
  164. ^"gnutls 3.6.12". 2020-02-01. Retrieved 2021-08-31.
  165. ^ ab"JDK 13 Early-Access Release Notes". Archived from the original on 2020-04-01. Retrieved 2019-06-20.
  166. ^ ab"JEP 339: Edwards-Curve Digital Signature Algorithm (EdDSA)". Retrieved 2024-01-14.
  167. ^"LibreSSL 2.5.1 release notes". OpenBSD. 2017-01-31. Retrieved 2017-02-23.
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  169. ^"PolarSSL 1.3.3 released". 2013-12-31. Archived from the original on 2014-01-07. Retrieved 2015-01-23.
  170. ^"Mbed TLS 2.9.0, 2.7.3 and 2.1.12 released". Retrieved 2018-08-30.
  171. ^ abc"PolarSSL 1.3.1 released". 2013-10-15. Archived from the original on 2015-01-23. Retrieved 2015-01-23.
  172. ^"Bug 957105 - Add support for curve25519 Key Exchange and UMAC MAC support for TLS". Mozilla. Retrieved 2017-02-23.
  173. ^"Bug 1305243 - Support for X448". Mozilla. Retrieved 2022-08-04.
  174. ^"Bug 1597057 - Curve448 or named Ed448-Goldilocks support needed (both X448 key exchange and Ed448 signature algorithm )". Mozilla. Retrieved 2022-08-04.
  175. ^ abc"Bug 943639 - Support for Brainpool ECC Curve (rfc5639)". Mozilla. Retrieved 2014-01-25.
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  177. ^"OpenSSL GitHub Issue #487 Tracker". GitHub. 2 December 2015. Retrieved 18 May 2018.
  178. ^"OpenSSL CHANGES". 1 May 2018. Archived from the original on 18 May 2018. Retrieved 18 May 2018.
  179. ^"OpenSSL GitHub Issue #5049 Tracker". GitHub. 9 January 2018. Retrieved 18 May 2018.
  180. ^"wolfSSL (Formerly CyaSSL) Release 3.4.6 (03/30/2015)". 2015-03-30. Retrieved 2015-11-19.
  181. ^"wolfSSL Release 4.4.0 (04/22/2020)". 2020-04-22. Retrieved 2022-10-18.
  182. ^"Release Note: Weak Named Curves in TLS, CertPath, and Signed JAR Disabled by Default". JDK Bug System (JBS). Retrieved 25 December 2024.
  183. ^"Release Note: Removal of Legacy Elliptic Curves". JDK Bug System (JBS). Retrieved 25 December 2024.
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  185. ^"SHA2 and Windows". Retrieved 2024-12-25.
  186. ^RFC 3749
  187. ^RFC 5746
  188. ^ abcRFC 6066
  189. ^RFC 7301
  190. ^RFC 6091
  191. ^RFC 4680
  192. ^RFC 5077. doi:10.17487/RFC5077.
  193. ^RFC 5705. doi:10.17487/RFC5705.
  194. ^RFC 7507. doi:10.17487/RFC7507.
  195. ^RFC 7627
  196. ^RFC 7685
  197. ^RFC 7250
  198. ^"Version 1.11.16, 2015-03-29 — Botan". 2016-03-29. Retrieved 2016-09-08.
  199. ^"Version 1.11.10, 2014-12-10 — Botan". 2014-12-10. Retrieved 2014-12-14.
  200. ^ ab"Version 1.11.26, 2016-01-04 — Botan". 2016-01-04. Retrieved 2016-02-25.
  201. ^Present, but disabled by default due to lack of use by any implementation.
  202. ^"gnutls 3.2.0". Archived from the original on 2016-01-31. Retrieved 2015-01-26.
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  204. ^"gnutls 3.4.4". Archived from the original on 2017-07-17. Retrieved 2015-08-25.
  205. ^"%DUMBFW priority keyword". Retrieved 2017-04-30.
  206. ^"gnutls 3.6.6". 2019-01-25. Retrieved 2019-09-01.
  207. ^"LibreSSL 2.1.3 released". 2015-01-22. Retrieved 2015-01-22.
  208. ^"LibreSSL 2.1.4 released". 2015-03-04. Retrieved 2015-03-04.
  209. ^"MatrixSSL - News". 2014-12-04. Archived from the original on 2015-02-14. Retrieved 2015-01-26.
  210. ^"Download overview - PolarSSL". 2014-04-11. Archived from the original on 2015-02-09. Retrieved 2015-01-26.
  211. ^ abc"mbed TLS 1.3.10 released". 2015-02-08. Archived from the original on 2015-02-09. Retrieved 2015-02-09.
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  216. ^"NSS 3.21 release notes". Archived from the original on 2021-12-07. Retrieved 2015-11-14.
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  219. ^"OpenSSL Announces Final Release of OpenSSL 3.2.0". 2023-11-23. Retrieved 2024-10-11.
  220. ^rustls does not implement earlier versions that would warrant protection against insecure downgrade
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  222. ^ ab"What's New in TLS/SSL (Schannel SSP)". 31 August 2016. Retrieved 2024-04-28.
  223. ^"wolfSSL Version 4.2.0 is Now Available!". 22 October 2019. Retrieved 2021-08-13.
  224. ^"wolfSSL supports Raw Public Keys". August 2023. Retrieved 2024-10-25.
  225. ^"Version 1.11.31, 2015-08-30 — Botan". 2016-08-30. Retrieved 2016-09-08.
  226. ^"Trusted Platform Module (TPM) — Botan".
  227. ^"JEP 164: Leverage CPU Instructions for AES Cryptography". openjdk.org.
  228. ^"RSA SecurID PASSCODE Request". sso.rsasecurity.com.
  229. ^"Comparison of BSAFE TLS libraries: Micro Edition Suite vs SSL-J | Dell Malaysia".
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  231. ^"Trusted Platform Module (GnuTLS 3.8.4)".
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  234. ^"NXP/Plug-and-trust". GitHub.
  235. ^"ARMmbed/Mbed-os-atecc608a". GitHub.
  236. ^Normally NSS's libssl performs all operations via the PKCS#11 interface, either to hardware or software tokens
  237. ^"Bug 706024 - AES-NI enhancements to NSS on Sandy Bridge systems". Retrieved 2013-09-28.
  238. ^"Bug 479744 - RFE : VIA Padlock ACE support (hardware RNG, AES, SHA1 and SHA256)". Retrieved 2014-04-11.
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  249. ^"CAAM support in wolfSSL". 10 March 2020.
  250. ^"wolfTPM Portable TPM 2.0 Library".
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  252. ^"WolfSSL SSL/TLS Support for NXP SE050 – wolfSSL". 22 February 2024.
  253. ^"WolfSSL support for the ATECC608 Crypto Coprocessor – wolfSSL". 13 October 2021.
  254. ^"WolfSSL support for STSAFE-A100 crypto coprocessor – wolfSSL". 20 September 2018.
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  258. ^"wolfProvider". 2021-11-10. Retrieved 2022-01-17.
  259. ^ abThe PKCS #11 URI Scheme. doi:10.17487/RFC7512. RFC7512.
  260. ^"libp11: PKCS#11 wrapper library". 19 January 2018 – via GitHub.
  261. ^"Windows CNG bridge for rustls". GitHub. Retrieved 2024-08-29.
  262. ^On the fly replaceable/augmentable.
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  264. ^"rustls-openssl compatibility layer". GitHub. Retrieved 2024-08-29.
  265. ^ ab"NSPR". Mozilla Developer Network.
  266. ^For Unix/Linux it uses /dev/urandom if available, for Windows it uses CAPI. For other platforms it gets data from clock, and tries to open system files. NSS has a set of platform dependent functions it uses to determine randomness.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Comparison_of_TLS_implementations&oldid=1281124162"
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