Comparison of cryptography libraries
The tables below compare cryptography libraries that deal with cryptography algorithms and have API function calls to each of the supported features.
Cryptography libraries
| Implementation | Company | Development Language | Open Source | Software License | FIPS 140 validated[1] | FIPS 140-2 mode | Latest Update | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACE[2] | Allegro Software Development Corporation[3] | C | No | Commercial license | Yes | Yes | July 12, 2018 (6.31) | ||||||||
| Botan | Jack Lloyd | C++ | Yes | Simplified BSD | No | No | 2.7.0 (July 2, 2018[4]) [±] | ||||||||
| Bouncy Castle | Legion of the Bouncy Castle Inc. | Java, C# | Yes | MIT License | Yes | Yes |
| ||||||||
| CryptoComply | SafeLogic | Java, C | No | Commercial license | Yes | Yes | Continuous | ||||||||
| cryptlib | Peter Gutmann | C | Yes | Sleepycat License or commercial license | No[lower-alpha 1] | Yes | 3.4.4 (January 10, 2018 [9]) [±] | ||||||||
| Crypto++ | The Crypto++ project | C++ | Yes | Boost Software License (all individual files are public domain) | No | No | April 8, 2018 (7.0.0) Moved to FIPS 140 Historical Validation List[lower-alpha 2] | ||||||||
| GnuTLS | Nikos Mavrogiannopoulos, Simon Josefsson | C | Yes | GNU LGPL v2.1+ | Yes | Yes |
| ||||||||
| Libgcrypt | GnuPG community and g10code | C | Yes | GNU LGPL v2.1+ | Yes | Yes | 1.8.3 (June 13, 2018[11]) [±] | ||||||||
| libsodium | Frank Denis | C | Yes | ISC license | No | No | December 13, 2017 (1.0.16) | ||||||||
| libtomcrypt | Libtom Projects | C | Yes | Public domain or WTFPL | No | Yes | January 22, 2018 (1.18.1)/Continuous | ||||||||
| NaCL | Daniel J. Bernstein, Tanja Lange, Peter Schwabe | C | Yes | Public domain | No | No | February 21, 2011[13] | ||||||||
| Nettle | C | Yes | GNU GPL v2+ or GNU LGPL v3 | No | No | 3.4 (November 19, 2017[14]) [±] | |||||||||
| Network Security Services | Mozilla | C | Yes | MPL 2.0 | Yes[15] | Yes | 3.38 (June 22, 2018[16]) [±] | ||||||||
| OpenSSL | The OpenSSL Project | C | Yes | Apache Licence 1.0 and 4-Clause BSD Licence | Yes | Yes | 1.1.1 (LTS) (September 11, 2018[17]) [±] | ||||||||
| SafeZone FIPS Lib | Inside Secure | C | No | Commercial license | Yes | Yes | 1.1.0[18] | ||||||||
| wolfCrypt | wolfSSL, Inc. | C | Yes | GPL v2 or commercial license | Yes | Yes | 3.15.3 (June 22, 2018[19]) [±] |
- ↑ The actual cryptlib is not FIPS 140 validated, although a validation exists for an adapted cryptlib as part of a third party, proprietary, commercial product.
- ↑ Crypto++ received three FIPS 140 validations from 2003 through 2008. In 2016 NIST moved Crypto++ to the Historical Validation List. The move effectively revokes the FIPS validation and federal agencies cannot use the module for validated cryptography.
Key operations
Key operations include key generation algorithms, key exchange agreements and public key cryptography standards.
Key generation and exchange
| Implementation | ECDH | DH | DSA | RSA | ElGamal | NTRU | DSS |
|---|---|---|---|---|---|---|---|
| Botan | Yes | Yes | Yes | Yes | Yes | No | Yes |
| ACE | Yes | Yes | Yes | Yes | No | No | No |
| Bouncy Castle | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| cryptlib | Yes | Yes | Yes | Yes | Yes | No | Yes |
| Crypto++ | Yes | Yes | Yes | Yes | Yes | No | Yes |
| Libgcrypt | Yes[lower-alpha 1] | Yes | Yes | Yes | Yes | No | Yes |
| libsodium | No | Yes | Yes | No | No | No | |
| Nettle | No | No | Yes | Yes | No | No | |
| OpenSSL | Yes | Yes | Yes | Yes | No | No | No |
| SafeZone FIPS Lib | Yes | Yes | Yes | Yes | No | No | No |
| wolfCrypt | Yes | Yes | Yes | Yes | Yes | Yes | |
| libtomcrypt | Yes | Yes | Yes | Yes | No | No | No |
- ↑ By using the lower level interface.
Elliptic curve cryptography (ECC) support
| Implementation | NIST | SECG | ECC Brainpool | ECDSA | ECDH | Curve25519 | EdDSA | GOST R 34.10 |
|---|---|---|---|---|---|---|---|---|
| Botan | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ACE | Yes | No | No | Yes | Yes | No | No | No |
| Bouncy Castle | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| cryptlib | Yes | Yes | Yes | Yes | Yes | |||
| Crypto++ | Yes | Yes | Yes | Yes | Yes | Yes | No | No |
| Libgcrypt | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| libsodium | Yes | Yes | Yes | |||||
| Nettle | Yes | No | No | |||||
| OpenSSL | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| SafeZone FIPS Lib | Yes | Yes | Yes | |||||
| wolfCrypt | Yes | Yes | Yes | Yes | Yes |
Public key cryptography standards
| Implementation | PKCS#1 | PKCS#5 | PKCS#8 | PKCS#12 | IEEE P1363 | ASN.1 |
|---|---|---|---|---|---|---|
| ACE | Yes | Yes | Yes | No | No | Yes |
| Botan | Yes | Yes | Yes | No | Yes | Yes |
| Bouncy Castle | Yes | Yes | Yes | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | Yes |
| cryptlib | Yes | Yes | Yes | Yes | No | Yes |
| Crypto++ | Yes | Yes | Yes[lower-alpha 1] | No | Yes | Yes |
| Libgcrypt | Yes | Yes[lower-alpha 2] | Yes[lower-alpha 2] | Yes[lower-alpha 2] | Yes[lower-alpha 2] | Yes[lower-alpha 2] |
| libsodium | No | No | No | No | No | No |
| Nettle | Yes | Yes | No | No | No | No |
| OpenSSL | Yes | Yes | Yes | Yes | No | Yes |
| wolfCrypt | Yes | Yes | Yes | Yes | No | Yes |
| libtomcrypt | Yes | Yes | Yes | No | No | Yes |
- ↑ The library offers X.509 and PKCS #8 encoding without PEM by default. For PEM encoding of public and private keys the PEM Pack is needed.
- 1 2 3 4 5 These Public Key Cryptographic Standards (PKCS) are supported by accompanying libraries and tools, which are also part of the GnuPG framework, although not by the actual libgcrypt library.
Hash functions
Comparison of supported cryptographic hash functions. At the moment this section also includes ciphers that are used for producing a MAC tag for a message. Here hash functions are defined as taking an arbitrary length message and producing a fixed size output that is virtually impossible to use for recreating the original message.
| Implementation | MD5 | SHA-1 | SHA-2 | SHA-3 | RIPEMD-160 | Tiger | Whirlpool | GOST | Stribog | BLAKE2 |
|---|---|---|---|---|---|---|---|---|---|---|
| ACE | Yes | Yes | Yes | Yes | No | No | No | No | No | No |
| Botan | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Bouncy Castle | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| cryptlib | Yes | Yes | Yes | Yes | Yes | No | Yes | No | No | No |
| Crypto++ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
| Libgcrypt | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| libsodium | No | No | Yes | No | No | No | No | No | No | Yes |
| Nettle | Yes | Yes | Yes | Yes | Yes | No | No | Yes | No | |
| OpenSSL | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| wolfCrypt | Yes | Yes | Yes | Yes | Yes | No | No | No | Yes | |
| libtomcrypt | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No | Yes |
MAC algorithms
Comparison of implementations of message authentication code (MAC) algorithms. A MAC is a short piece of information used to authenticate a message—in other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed in transit (its integrity).
| Implementation | HMAC-MD5 | HMAC-SHA1 | HMAC-SHA2 | Poly1305-AES | BLAKE2-MAC |
|---|---|---|---|---|---|
| ACE | Yes | Yes | Yes | No | No |
| Botan | Yes | Yes | Yes | Yes | Yes |
| Bouncy Castle | Yes | Yes | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | Yes | Yes | Yes |
| cryptlib | Yes | Yes | Yes | No | No |
| Crypto++ | Yes | Yes | Yes | Yes | Yes |
| Libgcrypt | Yes | Yes | Yes | Yes | Yes |
| libsodium | No | No | Yes | Yes | Yes |
| Nettle | Yes | Yes | Yes | Yes | No |
| OpenSSL | Yes | Yes | Yes | Yes | Yes |
| wolfCrypt | Yes | Yes | Yes | Yes | Yes |
| libtomcrypt | Yes | Yes | Yes | Yes | Yes |
Block ciphers
Table compares implementations of block ciphers. Block ciphers are defined as being deterministic and operating on a set number of bits (termed a block) using a symmetric key. Each block cipher can be broken up into the possible key sizes and block cipher modes it can be run with.
Block cipher algorithms
| Implementation | AES | Camellia | 3DES | Blowfish | Twofish | CAST5 | IDEA | GOST 28147-89 | ARIA |
|---|---|---|---|---|---|---|---|---|---|
| ACE | Yes | No | Yes | No | No | No | No | No | No |
| Botan | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Bouncy Castle[20] | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| cryptlib[21] | Yes | No | Yes | Yes | Yes | Yes | |||
| Crypto++ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes[lower-alpha 1] | Yes |
| Libgcrypt | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| libsodium | Yes[lower-alpha 2] | No | No | No | |||||
| Nettle | Yes | Yes | Yes | Yes | |||||
| OpenSSL | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes |
| wolfCrypt | Yes | Yes | Yes | No | Yes | ||||
| libtomcrypt | Yes | Yes | Yes | Yes | Yes | Yes | No | No |
Cipher modes
| Implementation | ECB | CBC | OFB | CFB | CTR | CCM | GCM | OCB | XTS | AES-Wrap | Stream |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ACE | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Botan | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Bouncy Castle | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| cryptlib | Yes | Yes | Yes | Yes | No | Yes | |||||
| Crypto++ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No | Yes |
| Libgcrypt | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| libsodium | No | No | Yes | No | Yes | ||||||
| Nettle | Yes | Yes | Yes | Yes | Yes | ||||||
| OpenSSL | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| wolfCrypt | Yes | Yes | Yes | Yes | Yes | ||||||
| libtomcrypt | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
Stream ciphers
Table compares implementations of the various stream ciphers. Stream ciphers are defined as using plain text digits that are combined with a pseudorandom cipher digit stream. Stream ciphers are typically faster than block ciphers and may have lower hardware complexity, but may be more susceptible to attacks.
| Implementation | RC4 | HC-256 | Rabbit | Salsa20 | ChaCha | SEAL | Panama | WAKE | Grain | VMPC | ISAAC |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ACE | Yes | No | No | No | No | No | No | No | No | No | No |
| Botan | Yes | No | No | Yes | Yes | No | No | No | No | No | No |
| Bouncy Castle | Yes | Yes | No | Yes | Yes | No | No | No | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | No | Yes | Yes | No | No | No | Yes | Yes | Yes |
| cryptlib | Yes | No | No | No | No | No | No | No | No | No | No |
| Crypto++ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No |
| Libgcrypt | Yes | No | No | Yes | Yes | No | No | No | No | No | No |
| libsodium | No | No | No | Yes | Yes | No | No | No | No | No | No |
| Nettle | Yes | No | No | Yes | Yes | No | No | No | No | No | No |
| OpenSSL | Yes | No | No | No | Yes | No | No | No | No | No | No |
| wolfCrypt | Yes | Yes | Yes | Yes | Yes | No | No | No | No | No | No |
| libtomcrypt | Yes | No | No | No | Yes | No | No | No | No | No | No |
Hardware-assisted support
Table compares the ability to utilize hardware enhanced cryptography. With using the assistance of specific hardware the library can achieve faster speeds and / or improved security than otherwise.
Smartcard, SIM and HSM protocol support
| Implementation | PKCS #11 | PC/SC | CCID |
|---|---|---|---|
| ACE | No | No | No |
| Botan | Yes | No | No |
| Bouncy Castle | Yes [lower-alpha 1] | ||
| CryptoComply | Yes | ||
| cryptlib | Yes | ||
| Crypto++ | No | ||
| Libgcrypt | Yes [22] | Yes [23] | Yes [24] |
| libsodium | No | ||
| OpenSSL | |||
| wolfCrypt | Yes | ||
| libtomcrypt | No |
- ↑ In conjunction with the PKCS#11 provider, or through the implementation of operator interfaces providing access to basic operations.
General purpose CPU / platform acceleration support
| Implementation | AES-NI | SSSE3 / SSE4.1 | AVX / AVX2 | RdRand | VIA PadLock | Intel QuickAssist | AltiVec[lower-alpha 1] | ARMv7-A NEON | ARMv8-A |
|---|---|---|---|---|---|---|---|---|---|
| ACE | Yes | No | No | No | No | No | No | No | |
| Botan | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes |
| CryptoComply | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | |
| cryptlib | Yes | Yes | Yes | Yes | Yes | No | No | ||
| Crypto++ | Yes | Yes | Yes | Yes | Yes[lower-alpha 2] | No | Yes | Yes | Yes |
| Libgcrypt[25] | Yes | Yes | Yes | Yes | Yes | No | No | Yes | Yes |
| libsodium | Yes | Yes | Yes | No | No | No | |||
| OpenSSL | Yes | Yes | Yes | Yes[lower-alpha 3] | Yes | No | Yes | Yes | Yes |
| wolfCrypt | Yes | Yes | Yes | No | Yes[26] | Yes[27] |
- ↑ AltiVec includes POWER4 through POWER8 SIMD processing. POWER8 added in-core crypto, which provides accelerated AES, SHA and PMUL similar to SSE and ARMv8.1.
- ↑ Crypto++ provides access to the Padlock random number generator. Other functions, like AES acceleration, is not provided.
- ↑ OpenSSL RDRAND support is provided through the ENGINE interface. The RDRAND generator is not used by default.
Microcontrollers' cryptographic accelerator support
| Implementation | STM32F2 | STM32F4 | Cavium NITROX | Freescale CAU/mmCAU | Microchip PIC32MZ | Atmel ATECC508A | TI TivaC Series | CubeMX | Nordic nRF51 |
|---|---|---|---|---|---|---|---|---|---|
| wolfCrypt | Yes | Yes | Yes | Yes | Yes | Yes[28] | Yes[29] | Yes | Yes |
Code size and code to comment ratio
| Implementation | Source Code Size (kSLOC = 1000 lines of source code) |
Code Lines to Comment Lines Ratio |
|---|---|---|
| ACE | 58 | 3.20 |
| Botan | 133[30] | 4.55[30] |
| Bouncy Castle | 1359[31] | 5.26[31] |
| cryptlib | 241 | 2.66 |
| Crypto++ | 115[32] | 5.74[32] |
| Libgcrypt | 216[33] | 6.27[33] |
| libsodium | 44[34] | 21.92[34] |
| libtomcrypt | 76[35] | 3.98[35] |
| Nettle | 111[36] | 4.08[36] |
| OpenSSL | 472[37] | 4.41[37] |
| wolfCrypt | 39 | 5.69 |
Portability
| Implementation | Supported Operating System | Thread safe |
|---|---|---|
| ACE | Unix, Windows, and more | Yes |
| Botan | Linux, Windows, macOS, Android, iOS, FreeBSD, NetBSD, OpenBSD, DragonflyBSD, AIX, QNX, Haiku, IncludeOS | Yes |
| Bouncy Castle | General Java API: J2ME, Java Runtime Environment 1.1+, Android. Java FIPS API: Java Runtime 1.5+, Android. C# API (General & FIPS): CLR 4. | |
| CryptoComply | Linux (RHEL, CentOS, Debian, Ubuntu, etc.), Windows, iOS, Android, FreeBSD, macOS, Solaris, Java Runtime Environment | Yes |
| cryptlib | AMX, ARINC 653, BeOS, ChorusOS, CMSIS-RTOS/mbed-rtos, DOS, DOS32, eCOS, embOS, FreeRTOS/OpenRTOS, uItron, MQX, MVS, Nucleus, OS/2, Palm OS, QNX Neutrino, RTEMS, SMX, Tandem NonStop, Telit, ThreadX, uC/OS II, Unix (AIX, FreeBSD, HP-UX, Linux, macOS, Solaris, etc.), VDK, VM/CMS, VxWorks, Win16, Win32, Win64, WinCE/PocketPC/etc, XMK | Yes |
| Crypto++ | Unix (AIX, OpenBSD, Linux, MacOS, Solaris, etc.), Win32, Win64, Android, iOS, ARM | Yes[lower-alpha 1] |
| Libgcrypt | All 32 and 64 bit Unix Systems (GNU/Linux, FreeBSD, NetBSD, macOS etc.), Win32, Win64, WinCE and more | Yes[38] |
| libsodium | macOS, Linux, OpenBSD, NetBSD, FreeBSD, DragonflyBSD, Android, iOS, 32 and 64-bit Windows (Visual Studio, MinGW, C++ Builder), NativeClient, QNX, JavaScript, AIX, MINIX, Solaris | Yes |
| OpenSSL | Solaris, IRIX, HP-UX, MPE/iX, Tru64, Linux, Android, BSD (OpenBSD, NetBSD, FreeBSD, DragonflyBSD), NextSTEP, QNX, UnixWare, SCO, AIX, 32 and 64-bit Windows (Visual Studio, MinGW, UWIN, CygWin), UEFI, macOS (Darwin), iOS, HURD, VxWorks, uClinux, VMS, DJGPP (DOS), Haiku | Yes |
| wolfCrypt | Win32/64, Linux, macOS, Solaris, ThreadX, VxWorks, FreeBSD, NetBSD, OpenBSD, embedded Linux, WinCE, Haiku, OpenWRT, iPhone (iOS), Android, Nintendo Wii and Gamecube through DevKitPro, QNX, MontaVista, NonStop, TRON/ITRON/µITRON, Micrium's µC/OS, FreeRTOS, SafeRTOS, Freescale MQX, Nucleus, TinyOS, HP-UX | Yes |
| libtomcrypt | Most 32 and 64 bit Systems (GNU/Linux, FreeBSD, macOS, Windows and more) | Yes |
- ↑ Crypto++ is thread safe at the object level, meaing there is no shared data among instances. If two different threads access the same object then the user is responsible for locking.
References
- ↑ Validated FIPS 140 Cryptographic Modules, NIST.gov, retrieved 2015-12-22
- ↑ "Allegro Cryptography Engine – ACE™". Retrieved 2018-06-15.
- ↑ "Allegro Software Development Corporation". Retrieved 2018-05-23.
- ↑ "Botan: Newslog". Retrieved 6 July 2018.
- ↑ "Latest Java Releases - bouncycastle.org". 2018-06-30. Retrieved 2018-07-28.
- ↑ "Java FIPS Resources - bouncycastle.org". 2018-03-15. Retrieved 2018-04-10.
- ↑ "The Legion of the Bouncy Castle C# Cryptography APIs". 2018-08-11. Retrieved 2018-08-11.
- ↑ "C# .NET FIPS Resources - bouncycastle.org". 2016-11-11. Retrieved 2017-08-28.
- ↑ "cryptlib 3.4.4 released". 2018-01-10.
- 1 2 "GnuTLS". Retrieved 17 July 2018.
- ↑ "Release 1.8.3". dev.gnupg.org. 2018-06-13. Retrieved 2018-06-13.
- ↑ "Release 1.7.10". dev.gnupg.org. 2018-06-13. Retrieved 2018-06-13.
- ↑ Downloading and installing NaCl, Bernstein, Lange, Schwabe, retrieved 2017-05-22
- ↑ "GNU Nettle". directory.fsf.org. FSF. 24 April 2015.
- ↑ "FIPS". Mozilla Foundation. 2012-02-01. Archived from the original on 2013-05-02. Retrieved 2013-05-17.
- ↑ "NSS Releases". Retrieved 27 June 2018.
- 1 2 "OpenSSL: Newslog". Retrieved 2018-09-22.
- ↑ Certificate #2389
- ↑ "wolfSSL ChangeLog". 2018-06-22. Retrieved 2018-06-22.
- ↑ Bouncy Castle Specifications, bouncycastle.org, retrieved 2018-04-10
- ↑ cryptlib Encryption Toolkit, Peter Gutmann, retrieved 2015-11-28
- ↑ With Scute, scute.org
- ↑ With GnuPG's SCdaemon & gpg-agent, gnupg.org
- ↑ With GnuPG's SCdaemon & gpg-agent, gnupg.org
- ↑ hwfeatures.c, git.gnupg.org
- ↑ https://www.wolfssl.com/wolfSSL/Blog/Entries/2017/1/18_wolfSSL_Asynchronous_Intel_QuickAssist_Support.html
- ↑ https://www.wolfssl.com/wolfSSL/Blog/Entries/2016/10/13_wolfSSL_ARMv8_Support.html
- ↑ https://www.wolfssl.com/wolfSSL/wolfssl-atmel.html
- ↑ http://processors.wiki.ti.com/index.php/Using_wolfSSL_with_TI-RTOS
- 1 2 Language Analysis of Botan, OpenHub.net, retrieved 2018-07-18
- 1 2 Language Analysis of Bouncy Castle, OpenHub.net, retrieved 2015-12-23
- 1 2 Language Analysis of Crypto++, OpenHub.net, retrieved 2018-07-18
- 1 2 Language Analysis of Libgcrypt, OpenHub.net, retrieved 2015-12-23
- 1 2 Language Analysis of libsodium, OpenHub.net, retrieved 2017-05-07
- 1 2 Language Analysis of libtomcrypt, OpenHub.net, retrieved 2018-02-12
- 1 2 Language Analysis of Nettle, OpenHub.net, retrieved 2015-12-23
- 1 2 Language Analysis of OpenSSL, OpenHub.net, retrieved 2017-05-07
- ↑ GnuPG documentation: Libgcrypt overview - thread safety, GnuPG.org, retrieved 2016-04-16
External links
- Botan project, https://botan.randombit.net/
- Crypto++ project, https://cryptopp.com/
- LibTom projects, http://www.libtom.net/
- OpenSSL libraries libssl and libcrypto, https://wiki.openssl.org/index.php/Libcrypto_API
- SafeLogic's CryptoComply family of cryptographic libraries, https://www.SafeLogic.com
- wolfSSL embedded crypto libraries, https://wolfssl.com/wolfSSL/Products-wolfcrypt.html
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