Mercurial > dropbear
view libtomcrypt/src/pk/katja/katja_export.c @ 647:939cd3e22c87 dropbear-tfm
- Fix constraints so we don't get warned about uninitialised
variable (it isn't used as input by the asm)
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Wed, 30 Nov 2011 23:15:21 +0800 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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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. * * Tom St Denis, [email protected], http://libtomcrypt.com */ #include "tomcrypt.h" /** @file katja_export.c Export Katja PKCS-style keys, Tom St Denis */ #ifdef MKAT /** This will export either an KatjaPublicKey or KatjaPrivateKey @param out [out] Destination of the packet @param outlen [in/out] The max size and resulting size of the packet @param type The type of exported key (PK_PRIVATE or PK_PUBLIC) @param key The Katja key to export @return CRYPT_OK if successful */ int katja_export(unsigned char *out, unsigned long *outlen, int type, katja_key *key) { int err; unsigned long zero=0; LTC_ARGCHK(out != NULL); LTC_ARGCHK(outlen != NULL); LTC_ARGCHK(key != NULL); /* type valid? */ if (!(key->type == PK_PRIVATE) && (type == PK_PRIVATE)) { return CRYPT_PK_INVALID_TYPE; } if (type == PK_PRIVATE) { /* private key */ /* output is Version, n, d, p, q, d mod (p-1), d mod (q - 1), 1/q mod p, pq */ if ((err = der_encode_sequence_multi(out, outlen, LTC_ASN1_SHORT_INTEGER, 1UL, &zero, LTC_ASN1_INTEGER, 1UL, key->N, LTC_ASN1_INTEGER, 1UL, key->d, LTC_ASN1_INTEGER, 1UL, key->p, LTC_ASN1_INTEGER, 1UL, key->q, LTC_ASN1_INTEGER, 1UL, key->dP, LTC_ASN1_INTEGER, 1UL, key->dQ, LTC_ASN1_INTEGER, 1UL, key->qP, LTC_ASN1_INTEGER, 1UL, key->pq, LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) { return err; } /* clear zero and return */ return CRYPT_OK; } else { /* public key */ return der_encode_sequence_multi(out, outlen, LTC_ASN1_INTEGER, 1UL, key->N, LTC_ASN1_EOL, 0UL, NULL); } } #endif /* MRSA */ /* $Source: /cvs/libtom/libtomcrypt/src/pk/katja/katja_export.c,v $ */ /* $Revision: 1.2 $ */ /* $Date: 2006/03/31 14:15:35 $ */