Rabin signature algorithm
Digital signature scheme / From Wikipedia, the free encyclopedia
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In cryptography, the Rabin signature algorithm is a method of digital signature originally proposed by Michael O. Rabin in 1978.[1][2][3]
The Rabin signature algorithm was one of the first digital signature schemes proposed. By introducing the use of hashing as an essential step in signing, it was the first design to meet what is now the modern standard of security against forgery, existential unforgeability under chosen-message attack, assuming suitably scaled parameters.
Rabin signatures resemble RSA signatures with 'exponent ', but this leads to qualitative differences that enable more efficient implementation[4] and a security guarantee relative to the difficulty of integer factorization,[2][3][5] which has not been proven for RSA. However, Rabin signatures have seen relatively little use or standardization outside IEEE P1363[6] in comparison to RSA signature schemes such as RSASSA-PKCS1-v1_5 and RSASSA-PSS.