Cryptlib
| Developer(s) | Peter Gutmann |
|---|---|
| Initial release | 1995 |
| Stable release | 3.4.3 (March 25, 2016 ) |
| Written in | C |
| Operating system | Cross-platform |
| Type | Security library |
| License | Sleepycat (Berkeley Database) License |
| Website | www |
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 standard commercial license for those preferring to use it under commercial terms.
cryptlib is a security toolkit library that allows programmers to incorporate encryption and authentication services to software. It provides a high-level interface so strong security capabilities can be added to an application without needing to know many of the low-level details of encryption or authentication algorithms. It comes with an over 400 page programming manual.
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 , , RTCS, and , 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 through to commercial-grade RDBMS' and LDAP directories with optional SSL protection.
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