SSL CipherSpec: IBM HTTP Server
System Administration IBM HTTP Server documentation

CipherSpec


Browser configuration

The following directives require browser configuration:

  • SSLCipherBan
  • SSLCipherRequire
  • SSLCipherSpec
  • SSLVersion

Cipher Specifications and Key Sizes

The SSL cipher specification indicates which data encryption algorithm and key size are used. For SSL V3, the hashing algorithm is included. For example, cipher specification DES SHA (56 bit) uses the DES encryption algorithm, a 56-bit key size and the SHA hashing algorithm. For more detailed information on cipher specifications, go to SSL 3.0 Specifications.

List of Valid Cipher Specifications

The following section provides a listing of currently valid cipher specifications.

SSL Version 2 Cipher Specifications

 
  • SSL_DES_192_EDE3_CBC_WITH_MD5
  • SSL_RC4_128_WITH_MD5
  • SSL_RC2_CBC_128_CBC_WITH_MD5
  • SSL_DES_64_CBC_WITH_MD5
  • SSL_RC4_128_EXPORT40_WITH_MD5
  • SSL_RC2_CBC_128_CBC_EXPORT40_WITH_MD5

  North American Edition (U.S. and Canada)  
Shortname Longname Description
27 SSL_DES_192_EDE3_CBC_WITH_MD5 Triple-DES (168 bit)
21 SSL_RC4_128_WITH_MD5 RC4 (128 bit)
23 SSL_RC2_CBC_128_CBC_WITH_MD5 RC2 (128 bit)
26 SSL_DES_64_CBC_WITH_MD5 DES (56 bit)
22 SSL_RC4_128_EXPORT40_WITH_MD5 RC4 (40 bit)
24 SSL_RC2_CBC_128_CBC_EXPORT40_WITH_MD5 RC2 (40 bit)

 

SSL Version 3 and Transaction Layer Security (TLS) Version 1 Cipher Specifications

 
  • SSL_RSA_WITH_3DES_EDE_CBC_SHA
  • SSL_RSA_EXPORT_WITH_RC4_40_MD4
  • SSL_RSA_WITH_RC4_128_MD5
  • SSL_RSA_WITH_DES_CBC_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5
  • SSL_RSA_WITH_NULL_SHA
  • SSL_RSA_WITH_NULL_MD5
  • SSL_NULL_WITH_NULL_NULL
  • TLS_RSA_EXPORT1024_WITH_RC4_56_SHA
  • TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA

 
  North American Edition (U.S. and Canada)  
Shortname Longname Description
   
3A SSL_RSA_WITH_3DES_EDE_CBC_SHA Triple-DES SHA (168 bit)
33 SSL_RSA_EXPORT_WITH_RC4_40_MD5 RC4 SHA (40 bit)
34 SSL_RSA_WITH_RC4_128_MD5 RC4 MD5 (128 bit)
39 SSL_RSA_WITH_DES_CBC_SHA DES SHA (56 bit)
35 SSL_RSA_WITH_RC4_128_SHA RC4 SHA (128 bit)
36 (See Note 1.) SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 RC2 MD5 (40 bit)
32 SSL_RSA_WITH_NULL_SHA
31 SSL_RSA_WITH_NULL_MD5
30 SSL_NULL_WITH_NULL_NULL

Note 1: Cipher spec 36 requires Netscape Navigator 4.07 and above.

 
  International Export Edition  
Shortname Longname Description
3A SSL_RSA_WITH_3DES_EDE_CBC_SHA Triple-DES SHA (168 bit)
33 SSL_RSA_EXPORT_WITH_RC4_40_MD5 RC4 SHA (40 bit)
34 SSL_RSA_WITH_RC4_128_MD5 RC4 MD5 (128 bit)
39 SSL_RSA_WITH_DES_CBC_SHA DES SHA (56 bit)
35 SSL_RSA_WITH_RC4_128_SHA RC4 SHA (128 bit)
36 (See Note 1.) SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 RC2 MD5 (40 bit)
32 SSL_RSA_WITH_NULL_SHA
31 SSL_RSA_WITH_NULL_MD5
30 SSL_NULL_WITH_NULL_NULL
62 TLS_RSA_EXPORT1024_WITH_RC4_56_SHA RC4 SHA Export1024 (56 bit)
64 TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA DES SHA Export1024 (56 bit)
 

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