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Diffstat (limited to 'doc/ssl/SSL_CIPHER_get_name.pod')
| -rw-r--r-- | doc/ssl/SSL_CIPHER_get_name.pod | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/doc/ssl/SSL_CIPHER_get_name.pod b/doc/ssl/SSL_CIPHER_get_name.pod deleted file mode 100644 index c598f4d4ce26..000000000000 --- a/doc/ssl/SSL_CIPHER_get_name.pod +++ /dev/null @@ -1,132 +0,0 @@ -=pod - -=head1 NAME - -SSL_CIPHER_get_name, SSL_CIPHER_get_bits, SSL_CIPHER_get_version, SSL_CIPHER_description - get SSL_CIPHER properties - -=head1 SYNOPSIS - - #include <openssl/ssl.h> - - const char *SSL_CIPHER_get_name(const SSL_CIPHER *cipher); - int SSL_CIPHER_get_bits(const SSL_CIPHER *cipher, int *alg_bits); - char *SSL_CIPHER_get_version(const SSL_CIPHER *cipher); - char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int size); - -=head1 DESCRIPTION - -SSL_CIPHER_get_name() returns a pointer to the name of B<cipher>. If the -argument is the NULL pointer, a pointer to the constant value "NONE" is -returned. - -SSL_CIPHER_get_bits() returns the number of secret bits used for B<cipher>. If -B<alg_bits> is not NULL, it contains the number of bits processed by the -chosen algorithm. If B<cipher> is NULL, 0 is returned. - -SSL_CIPHER_get_version() returns string which indicates the SSL/TLS protocol -version that first defined the cipher. -This is currently B<SSLv2> or B<TLSv1/SSLv3>. -In some cases it should possibly return "TLSv1.2" but does not; -use SSL_CIPHER_description() instead. -If B<cipher> is NULL, "(NONE)" is returned. - -SSL_CIPHER_description() returns a textual description of the cipher used -into the buffer B<buf> of length B<len> provided. B<len> must be at least -128 bytes, otherwise a pointer to the string "Buffer too small" is -returned. If B<buf> is NULL, a buffer of 128 bytes is allocated using -OPENSSL_malloc(). If the allocation fails, a pointer to the string -"OPENSSL_malloc Error" is returned. - -=head1 NOTES - -The number of bits processed can be different from the secret bits. An -export cipher like e.g. EXP-RC4-MD5 has only 40 secret bits. The algorithm -does use the full 128 bits (which would be returned for B<alg_bits>), of -which however 88bits are fixed. The search space is hence only 40 bits. - -The string returned by SSL_CIPHER_description() in case of success consists -of cleartext information separated by one or more blanks in the following -sequence: - -=over 4 - -=item <ciphername> - -Textual representation of the cipher name. - -=item <protocol version> - -Protocol version: B<SSLv2>, B<SSLv3>, B<TLSv1.2>. The TLSv1.0 ciphers are -flagged with SSLv3. No new ciphers were added by TLSv1.1. - -=item Kx=<key exchange> - -Key exchange method: B<RSA> (for export ciphers as B<RSA(512)> or -B<RSA(1024)>), B<DH> (for export ciphers as B<DH(512)> or B<DH(1024)>), -B<DH/RSA>, B<DH/DSS>, B<Fortezza>. - -=item Au=<authentication> - -Authentication method: B<RSA>, B<DSS>, B<DH>, B<None>. None is the -representation of anonymous ciphers. - -=item Enc=<symmetric encryption method> - -Encryption method with number of secret bits: B<DES(40)>, B<DES(56)>, -B<3DES(168)>, B<RC4(40)>, B<RC4(56)>, B<RC4(64)>, B<RC4(128)>, -B<RC2(40)>, B<RC2(56)>, B<RC2(128)>, B<IDEA(128)>, B<Fortezza>, B<None>. - -=item Mac=<message authentication code> - -Message digest: B<MD5>, B<SHA1>. - -=item <export flag> - -If the cipher is flagged exportable with respect to old US crypto -regulations, the word "B<export>" is printed. - -=back - -=head1 EXAMPLES - -Some examples for the output of SSL_CIPHER_description(): - - EDH-RSA-DES-CBC3-SHA SSLv3 Kx=DH Au=RSA Enc=3DES(168) Mac=SHA1 - EDH-DSS-DES-CBC3-SHA SSLv3 Kx=DH Au=DSS Enc=3DES(168) Mac=SHA1 - RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 - EXP-RC4-MD5 SSLv3 Kx=RSA(512) Au=RSA Enc=RC4(40) Mac=MD5 export - -A comp[lete list can be retrieved by invoking the following command: - - openssl ciphers -v ALL - -=head1 BUGS - -If SSL_CIPHER_description() is called with B<cipher> being NULL, the -library crashes. - -If SSL_CIPHER_description() cannot handle a built-in cipher, the according -description of the cipher property is B<unknown>. This case should not -occur. - -The standard terminology for ephemeral Diffie-Hellman schemes is DHE -(finite field) or ECDHE (elliptic curve). This version of OpenSSL -idiosyncratically reports these schemes as EDH and EECDH, even though -it also accepts the standard terminology. - -It is recommended to use the standard terminology (DHE and ECDHE) -during configuration (e.g. via SSL_CTX_set_cipher_list) for clarity of -configuration. OpenSSL versions after 1.0.2 will report the standard -terms via SSL_CIPHER_get_name and SSL_CIPHER_description. - -=head1 RETURN VALUES - -See DESCRIPTION - -=head1 SEE ALSO - -L<ssl(3)|ssl(3)>, L<SSL_get_current_cipher(3)|SSL_get_current_cipher(3)>, -L<SSL_get_ciphers(3)|SSL_get_ciphers(3)>, L<ciphers(1)|ciphers(1)>, -L<SSL_CTX_set_cipher_list(3)|SSL_CTX_set_cipher_list(3)> - -=cut |