Manual Pages for UNIX Operating System command usage for man RSA_padding_check_PKCS1_OAEP

OpenSSL                    RSA_padding_add_PKCS1_type_1(3openssl)



NNNNAAAAMMMMEEEE
     RSA_padding_add_PKCS1_type_1,
     RSA_padding_check_PKCS1_type_1,
     RSA_padding_add_PKCS1_type_2,
     RSA_padding_check_PKCS1_type_2, RSA_padding_add_PKCS1_OAEP,
     RSA_padding_check_PKCS1_OAEP, RSA_padding_add_SSLv23,
     RSA_padding_check_SSLv23, RSA_padding_add_none,
     RSA_padding_check_none - asymmetric encryption padding

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
      #include 

      int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
         unsigned char *f, int fl);

      int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
         unsigned char *f, int fl, int rsa_len);

      int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
         unsigned char *f, int fl);

      int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
         unsigned char *f, int fl, int rsa_len);

      int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
         unsigned char *f, int fl, unsigned char *p, int pl);

      int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
         unsigned char *f, int fl, int rsa_len, unsigned char *p, int pl);

      int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
         unsigned char *f, int fl);

      int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
         unsigned char *f, int fl, int rsa_len);

      int RSA_padding_add_none(unsigned char *to, int tlen,
         unsigned char *f, int fl);

      int RSA_padding_check_none(unsigned char *to, int tlen,
         unsigned char *f, int fl, int rsa_len);


DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
     The RSA_padding_xxx_xxx() functions are called from the RSA
     encrypt, decrypt, sign and verify functions. Normally they
     should not be called from application programs.

     However, they can also be called directly to implement
     padding for other asymmetric ciphers.
     RSA_padding_add_PKCS1_OAEP() and
     RSA_padding_check_PKCS1_OAEP() may be used in an application



24/Feb/2000            Last change: 0.9.8o                      1






OpenSSL                    RSA_padding_add_PKCS1_type_1(3openssl)



     combined with RRRRSSSSAAAA_NNNNOOOO_PPPPAAAADDDDDDDDIIIINNNNGGGG in order to implement OAEP with
     an encoding parameter.

     RSA_padding_add_xxx() encodes ffffllll bytes from ffff so as to fit
     into ttttlllleeeennnn bytes and stores the result at ttttoooo. An error occurs
     if ffffllll does not meet the size requirements of the encoding
     method.

     The following encoding methods are implemented:

     PKCS1_type_1
         PKCS #1 v2.0 EMSA-PKCS1-v1_5 (PKCS #1 v1.5 block type
         1); used for signatures

     PKCS1_type_2
         PKCS #1 v2.0 EME-PKCS1-v1_5 (PKCS #1 v1.5 block type 2)

     PKCS1_OAEP
         PKCS #1 v2.0 EME-OAEP

     SSLv23
         PKCS #1 EME-PKCS1-v1_5 with SSL-specific modification

     none
         simply copy the data

     The random number generator must be seeded prior to calling
     RSA_padding_add_xxx().

     RSA_padding_check_xxx() verifies that the ffffllll bytes at ffff
     contain a valid encoding for a rrrrssssaaaa_lllleeeennnn byte RSA key in the
     respective encoding method and stores the recovered data of
     at most ttttlllleeeennnn bytes (for RRRRSSSSAAAA_NNNNOOOO_PPPPAAAADDDDDDDDIIIINNNNGGGG: of size ttttlllleeeennnn) at ttttoooo.

     For RSA_padding_xxx_OAEP(), pppp points to the encoding
     parameter of length ppppllll. pppp may be NNNNUUUULLLLLLLL if ppppllll is 0.

RRRREEEETTTTUUUURRRRNNNN VVVVAAAALLLLUUUUEEEESSSS
     The RSA_padding_add_xxx() functions return 1 on success, 0
     on error.  The RSA_padding_check_xxx() functions return the
     length of the recovered data, -1 on error. Error codes can
     be obtained by calling ERR_get_error(3).

SSSSEEEEEEEE AAAALLLLSSSSOOOO
     RSA_public_encrypt(3), RSA_private_decrypt(3), RSA_sign(3),
     RSA_verify(3)

HHHHIIIISSSSTTTTOOOORRRRYYYY
     RSA_padding_add_PKCS1_type_1(),
     RSA_padding_check_PKCS1_type_1(),
     RSA_padding_add_PKCS1_type_2(),
     RSA_padding_check_PKCS1_type_2(), RSA_padding_add_SSLv23(),



24/Feb/2000            Last change: 0.9.8o                      2






OpenSSL                    RSA_padding_add_PKCS1_type_1(3openssl)



     RSA_padding_check_SSLv23(), RSA_padding_add_none() and
     RSA_padding_check_none() appeared in SSLeay 0.9.0.

     RSA_padding_add_PKCS1_OAEP() and
     RSA_padding_check_PKCS1_OAEP() were added in OpenSSL 0.9.2b.


















































24/Feb/2000            Last change: 0.9.8o                      3