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cryptlib
Open source software security toolkit library

cryptlib is an open-source cross-platform software security toolkit library. It is distributed under the Sleepycat License, a free software license compatible with the GNU General Public License. Alternatively, cryptlib is available under a proprietary license for those preferring to use it under proprietary terms.

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Features

cryptlib is a security toolkit library that allows programmers to incorporate encryption and authentication services to software. It provides a high-level interface, so that strong security capabilities can be added to an application without needing to know many of the low-level details of encryption or authentication algorithms. Extensive documentation in the form of a 400+ page programming manual is available.4

At the highest level, cryptlib provides implementations of complete security services such as S/MIME and PGP/OpenPGP secure enveloping, SSL/TLS and SSH secure sessions, CA services such as CMP, SCEP, RTCS, OCSP, and other security operations such as secure timestamping. Since cryptlib uses industry-standard X.509, S/MIME, PGP/OpenPGP, and SSH/SSL/TLS data formats, the resulting encrypted or signed data can be easily transported to other systems and processed there, and cryptlib itself runs on many operating systems—all Windows versions and most Unix/Linux systems. This allows email, files, and EDI transactions to be authenticated with digital signatures and encrypted in an industry-standard format.

cryptlib provides other capabilities including full X.509/PKIX certificate handling (all X.509 versions from X.509v1 to X.509v4) with support for SET, Microsoft AuthentiCode, Identrus, SigG, S/MIME, SSL, and Qualified certificates, PKCS #7 certificate chains, handling of certification requests and CRLs (certificate revocation lists) including automated checking of certificates against CRLs and online checking using RTCS and OCSP, and issuing and revoking certificates using CMP and SCEP. It also implements a full range of certification authority (CA) functions provides complete CMP, SCEP, RTCS, and OCSP server implementations to handle online certificate enrolment/issue/revocation and certificate status checking. Alongside the certificate handling, it provides a sophisticated key storage interface that allows the use of a wide range of key database types ranging from PKCS #11 devices, PKCS #15 key files, and PGP/OpenPGP key rings to commercial-grade RDBMS and LDAP directories with optional SSL protection.

cryptlib can make use of the cryptographic capabilities of a variety of external cryptographic devices such as hardware cryptographic accelerators, Fortezza cards, PKCS #11 devices, hardware security modules (HSMs), and cryptographic smart cards. It can be used with a variety of cryptography devices that have received FIPS 140 or ITSEC/Common Criteria certification. The cryptographic device interface also provides a general-purpose plug-in capability for adding new functionality that can be used by cryptlib.

cryptlib is written in C and supports BeOS, DOS, IBM MVS, Mac OS X, OS/2, Tandem, a variety of Unix versions (including AIX, Digital Unix, DGUX, FreeBSD/NetBSD/OpenBSD, HP-UX, IRIX, Linux, MP-RAS, OSF/1, QNX, SCO UnixWare, Solaris, SunOS, Ultrix, and UTS4), VM/CMS, Windows 3.x, Windows 95/98/ME, Windows CE/PocketPC/SmartPhone and Windows NT/2000/XP/Vista. It is designed to be portable to other embedded system environments. It is available as a standard DLL. Language bindings are available for C / C++, C# / .NET, Delphi,5 Java, Python, and Visual Basic (VB).

Algorithm support

Ciphers
AlgorithmKey sizeBlock size
AES128/192/256128
Blowfish44864
CAST-12812864
DES65664
Triple DES112 / 16864
IDEA712864
RC28102464
RC4920488
RC51083264
Skipjack118064
Hashes
AlgorithmDigest size
MD21213128
MD41415128
MD516128
RIPEMD-160160
SHA-1160
SHA-2 / SHA-256256
MACs
AlgorithmKey sizeDigest size
HMAC-MD5128128
HMAC-RIPEMD-160160160
HMAC-SHA-1160160
HMAC-SHA-2256256
Public-key
AlgorithmKey size
Diffie–Hellman4096
DSA4096
ECDSA521
ECDH521
Elgamal4096
RSA4096

Release History

  • cryptlib 3.4.5 was released on March 8, 2019; 6 years ago (2019-03-08).
  • cryptlib 3.4.4.1 was released on August 21, 2018; 6 years ago (2018-08-21).17
  • cryptlib 3.4.4 was released on January 10, 2018; 7 years ago (2018-01-10).18
  • cryptlib 3.4.3 was released on March 25, 2016; 9 years ago (2016-03-25).19
  • cryptlib 3.4.2 was released on December 17, 2012; 12 years ago (2012-12-17).20
  • cryptlib 3.4.1 was released on July 27, 2011; 13 years ago (2011-07-27).21
  • cryptlib 3.4.0 was released on October 6, 2010; 14 years ago (2010-10-06).22
  • cryptlib 3.3.2 was released on July 3, 2008; 16 years ago (2008-07-03).23
  • cryptlib 3.3.1 was released on February 1, 2007; 18 years ago (2007-02-01).24
  • cryptlib 3.3 was released on September 13, 2006; 18 years ago (2006-09-13).25
  • cryptlib 3.2.3a was released on August 29, 2006; 18 years ago (2006-08-29).26
  • cryptlib 3.2.3 was released on July 10, 2006; 18 years ago (2006-07-10).27
  • cryptlib 3.2.2 was released on September 6, 2005; 19 years ago (2005-09-06).28
  • cryptlib 3.2.1 was released on August 9, 2005; 19 years ago (2005-08-09).29
  • cryptlib 3.2 was released on April 18, 2005; 20 years ago (2005-04-18).30
  • cryptlib 3.1 was released on December 13, 2003; 21 years ago (2003-12-13).31

See also

  • Free and open-source software portal

References

  1. "Security FAQ". Archived from the original on 2018-06-29. Retrieved 2018-11-02. https://www.cryptlib.com/security-faq ↩

  2. "License list". Archived from the original on 2009-07-16. Retrieved 2018-11-02. https://www.gnu.org/licenses/license-list.html ↩

  3. "Enterprise cryptlib". Archived from the original on 2011-06-08. Retrieved 2025-03-31. http://www.cryptlib.com/ ↩

  4. cryptlib user manual https://www.cryptlib.com/downloads/manual.pdf ↩

  5. "Cryptlib AddOn's for Delphi programmers". cryptlib.sogot.de. Archived from the original on 2008-03-17. Retrieved 2008-04-07. http://cryptlib.sogot.de/delphi.html ↩

  6. Disabled by default due to its insecurity ↩

  7. Disabled by default due to it being patented ↩

  8. Disabled by default due to it being obsolete ↩

  9. Disabled by default due to it being obsolete ↩

  10. Disabled by default due to it being patented ↩

  11. Disabled by default due to it being obsolete ↩

  12. Disabled by default due to its insecurity ↩

  13. Disabled by default due to it being obsolete ↩

  14. Disabled by default due to its insecurity ↩

  15. Disabled by default due to it being obsolete ↩

  16. Disabled by default due to its insecurity ↩

  17. Gutmann, Peter (August 21, 2018). "cryptlib 3.4.4 update 1 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  18. Gutmann, Peter (January 10, 2018). "cryptlib 3.4.4 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  19. Gutmann, Peter (March 25, 2016). "cryptlib 3.4.3 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  20. Gutmann, Peter (December 17, 2012). "cryptlib 3.4.2 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  21. Gutmann, Peter (July 27, 2011). "cryptlib 3.4.1 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  22. Gutmann, Peter (October 6, 2010). "cryptlib 3.4.0 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  23. Gutmann, Peter (July 3, 2008). "cryptlib 3.3.2 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  24. Gutmann, Peter (February 1, 2007). "cryptlib 3.3.1 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  25. Gutmann, Peter (September 13, 2006). "cryptlib 3.3 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  26. Gutmann, Peter (August 29, 2006). "cryptlib 3.2.3a released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  27. Gutmann, Peter (July 10, 2006). "cryptlib 3.2.3 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  28. Gutmann, Peter (September 6, 2005). "cryptlib 3.2.2 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  29. Gutmann, Peter (August 9, 2005). "cryptlib 3.2.1 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  30. Gutmann, Peter (April 18, 2005). "cryptlib 3.2 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩

  31. Gutmann, Peter (December 13, 2003). "cryptlib 3.1 released" (Mailing list). Retrieved 2019-08-07. /wiki/Peter_Gutmann_(computer_scientist) ↩