15.2.1.4 RSA RFC 3447

The following functions have been defined in RFC 3447.

Bigloo Cryptography procedure: RSAEP k m

Bigloo Cryptography procedure: RSADP k c

Bigloo Cryptography procedure: RSASP1 k m

Bigloo Cryptography procedure: RSAVP1 k s

These are the RFC 3447 names for encryption, decryption, signature and signature verification. Note that the verification does not receive the original message as parameter.

In fact rsa-verify is implemented as follows:

(define (rsa-verify k m s)
  (=bx m (RSAVP1 k s)))

Bigloo Cryptography procedure: PKCS1-v1.5-pad m-str key-len mode

Bigloo Cryptography procedure: PKCS1-v1.5-unpad em-str mode

Pads (resp. unpads) the given string using PKCS1-v1.5 specifications. Mode must be 0, 1 or 2.

Bigloo Cryptography procedure: RSAES-PKCS1-v1.5-encrypt key m-str

Bigloo Cryptography procedure: RSAES-PKCS1-v1.5-decrypt key c-str

Bigloo Cryptography procedure: RSASSA-PKCS1-v1.5-sign key msg-str [:hash-algo 'sha-1]

Bigloo Cryptography procedure: RSASSA-PKCS1-v1.5-verify key msg-str S-str

Bigloo Cryptography procedure: RSASSA-PKCS1-v1.5-sign-bignum key msg-str [:hash-algo 'sha-1]

Bigloo Cryptography procedure: RSASSA-PKCS1-v1.5-verify-bignum key msg-str S

RSAES-PKCS1-v1.5 functions work on strings. However their length is limited by the size of the modulus (to be exact: by key-len - 11). The -bignum functions skip the last step of converting the internal bignum to strings.

The optional :hash-algo must be either sha-1 or md5 (RFC 3447 allows other hash algorithms, but they are not yet implemented).

Bigloo Cryptography procedure: RSAES-OAEP-encrypt key m-str [:label ""]

Bigloo Cryptography procedure: RSAES-OAEP-decrypt key cypher-str [:label ""]

Bigloo Cryptography procedure: RSASSA-PSS-sign key msg-str

Bigloo Cryptography procedure: RSASSA-PSS-verify key msg-str sig-str

These functions pad, mask, etc the input string before they perform their operation on them. See RFC 3447 for more information.

This document was generated on March 31, 2014 using texi2html 5.0.