1f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* LibTomCrypt, modular cryptographic library -- Tom St Denis 2f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 3f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * LibTomCrypt is a library that provides various cryptographic 4f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * algorithms in a highly modular and flexible manner. 5f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 6f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * The library is free for all purposes without any express 7f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * guarantee it works. 8f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 9f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com 10f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project */ 11f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project#include "tomcrypt.h" 12f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 13f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/** 14f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @file rsa_export.c 15f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project Export RSA PKCS keys, Tom St Denis 16f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project*/ 17f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 18f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project#ifdef MRSA 19f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 20f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/** 21f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project This will export either an RSAPublicKey or RSAPrivateKey [defined in PKCS #1 v2.1] 22f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param out [out] Destination of the packet 23f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param outlen [in/out] The max size and resulting size of the packet 24f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param type The type of exported key (PK_PRIVATE or PK_PUBLIC) 25f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param key The RSA key to export 26f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @return CRYPT_OK if successful 27f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project*/ 28f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Projectint rsa_export(unsigned char *out, unsigned long *outlen, int type, rsa_key *key) 29f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project{ 30f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project unsigned long zero=0; 31f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ARGCHK(out != NULL); 32f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ARGCHK(outlen != NULL); 33f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ARGCHK(key != NULL); 34f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 35f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project /* type valid? */ 36f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project if (!(key->type == PK_PRIVATE) && (type == PK_PRIVATE)) { 37f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project return CRYPT_PK_INVALID_TYPE; 38f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project } 39f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 40f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project if (type == PK_PRIVATE) { 41f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project /* private key */ 42f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project /* output is 43f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project Version, n, e, d, p, q, d mod (p-1), d mod (q - 1), 1/q mod p 44f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project */ 45f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project return der_encode_sequence_multi(out, outlen, 46f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_SHORT_INTEGER, 1UL, &zero, 47f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->N, 48f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->e, 49f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->d, 50f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->p, 51f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->q, 52f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->dP, 53f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->dQ, 54f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->qP, 55f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_EOL, 0UL, NULL); 56f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project } else { 57f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project /* public key */ 58f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project return der_encode_sequence_multi(out, outlen, 59f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->N, 60f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_INTEGER, 1UL, key->e, 61f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ASN1_EOL, 0UL, NULL); 62f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project } 63f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project} 64f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 65f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project#endif /* MRSA */ 66f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 67f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Source: /cvs/libtom/libtomcrypt/src/pk/rsa/rsa_export.c,v $ */ 68f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Revision: 1.15 $ */ 69f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Date: 2006/03/31 14:15:35 $ */ 70