SSLeay is an open-source SSL implementation. It was developed by Eric Andrew Young[1] and Tim J. Hudson as an SSL 3.0 implementation using RC2 and RC4 encryption.[2] The recommended pronunciation is to say each letter s-s-l-e-a-y and was first developed by Eric A. Young ("eay").[3] Development of SSLeay unofficially mostly ended, and the volunteers maintaining the codebase forked the project under the OpenSSL banner around December 1998, when Tim and Eric both moved to work for RSA Security.


SSLeay was developed by Eric A. Young, starting in 1995. Windows support was added by Tim J. Hudson. Development by Young and Hudson ceased in 1998. The SSLeay library and codebase is licensed under its own SSLeay License, a form of free software license.[2][3][4] The SSLeay License is a BSD-style open-source license.[5]

SSLeay supports X.509v3 certificates and PKCS#10 certificate requests.[6] It supports SSL2 and SSL3.[7] Also supported is TLSv1.[8]

The first secure FTP implementation was created under BSD using SSLeay by Tim Hudson.[1]


OpenSSL is a fork and successor project to SSLeay and has a similar interface to it.[3][9] After Young and Hudson joined RSA Corporation, volunteers forked SSLeay and continued development as OpenSSL.[2]

RSA SSL-C is a fork of SSLeay developed by Eric A. Young and Tim J. Hudson for RSA Corporation. It was released as part of RSA BSAFE.[2][10]


  1. 1 2 David Ross (1999). "An Implementation of Secure FTP". Proceedings of Open Source AUUG '99. p. 96.
  2. 1 2 3 4 Simson Garfinkel, Gene Spafford (2002). Web Security, Privacy & Commerce. O'Reilly. p. 114. ISBN 0596000456.
  3. 1 2 3 David Gourley, Brian Totty (2002). HTTP: The Definitive Guide. O'Reilly. p. 329. ISBN 1565925092.
  4. Eric A. Young (1998). SSLeay License.
  5. OpenSSL Project (1999). LICENSE. OpenSSL.
  6. Sokratis Katsikas (1997). Communications and Multimedia Security. Springer. p. 54. ISBN 0412817705.
  7. Mohammed J. Kabir (1999). Apache Server: Administrator's Handbook. IDG. p. 402. ISBN 0764533061.
  8. Man Young Rhee (2003). Internet Security: Cryptographic Principles, Algorithms and Protocols. Wiley. p. 277. ISBN 0470852852.
  9. Bryan Hong (2006). Building an Internet Server With Freebsd 6. p. 105. ISBN 9781411695740.
  10. RSA Data Security (1999). "RSA Introduces BSAFE SSL-C for Worldwide Markets". PR Newswire.

See also

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