Mercurial > dropbear
view libtomcrypt/src/pk/rsa/rsa_sign_saltlen_get.c @ 1693:f9ad4d39e388
Bring back -Werror and improve travis tests
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Tue, 26 May 2020 23:53:50 +0800 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" /** @file rsa_sign_saltlen_get.c Retrieve the maximum size of the salt, Steffen Jaeckel. */ #ifdef LTC_MRSA /** Retrieve the maximum possible size of the salt when creating a PKCS#1 PSS signature. @param padding Type of padding (LTC_PKCS_1_PSS only) @param hash_idx The index of the desired hash @param key The RSA key @return The maximum salt length in bytes or INT_MAX on error. */ int rsa_sign_saltlen_get_max_ex(int padding, int hash_idx, rsa_key *key) { int ret = INT_MAX; LTC_ARGCHK(key != NULL); if ((hash_is_valid(hash_idx) == CRYPT_OK) && (padding == LTC_PKCS_1_PSS)) { ret = rsa_get_size(key); if (ret < INT_MAX) { ret -= (hash_descriptor[hash_idx].hashsize + 2); } /* if */ } /* if */ return ret; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */