1/* 2 * Crypto wrapper for internal crypto implementation - RSA parts 3 * Copyright (c) 2006-2009, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#include "includes.h" 10 11#include "common.h" 12#include "crypto.h" 13#include "tls/rsa.h" 14#include "tls/pkcs1.h" 15#include "tls/pkcs8.h" 16 17/* Dummy structures; these are just typecast to struct crypto_rsa_key */ 18struct crypto_public_key; 19struct crypto_private_key; 20 21 22struct crypto_public_key * crypto_public_key_import(const u8 *key, size_t len) 23{ 24 return (struct crypto_public_key *) 25 crypto_rsa_import_public_key(key, len); 26} 27 28 29struct crypto_private_key * crypto_private_key_import(const u8 *key, 30 size_t len, 31 const char *passwd) 32{ 33 struct crypto_private_key *res; 34 35 /* First, check for possible PKCS #8 encoding */ 36 res = pkcs8_key_import(key, len); 37 if (res) 38 return res; 39 40 if (passwd) { 41 /* Try to parse as encrypted PKCS #8 */ 42 res = pkcs8_enc_key_import(key, len, passwd); 43 if (res) 44 return res; 45 } 46 47 /* Not PKCS#8, so try to import PKCS #1 encoded RSA private key */ 48 wpa_printf(MSG_DEBUG, "Trying to parse PKCS #1 encoded RSA private " 49 "key"); 50 return (struct crypto_private_key *) 51 crypto_rsa_import_private_key(key, len); 52} 53 54 55struct crypto_public_key * crypto_public_key_from_cert(const u8 *buf, 56 size_t len) 57{ 58 /* No X.509 support in crypto_internal.c */ 59 return NULL; 60} 61 62 63int crypto_public_key_encrypt_pkcs1_v15(struct crypto_public_key *key, 64 const u8 *in, size_t inlen, 65 u8 *out, size_t *outlen) 66{ 67 return pkcs1_encrypt(2, (struct crypto_rsa_key *) key, 68 0, in, inlen, out, outlen); 69} 70 71 72int crypto_private_key_decrypt_pkcs1_v15(struct crypto_private_key *key, 73 const u8 *in, size_t inlen, 74 u8 *out, size_t *outlen) 75{ 76 return pkcs1_v15_private_key_decrypt((struct crypto_rsa_key *) key, 77 in, inlen, out, outlen); 78} 79 80 81int crypto_private_key_sign_pkcs1(struct crypto_private_key *key, 82 const u8 *in, size_t inlen, 83 u8 *out, size_t *outlen) 84{ 85 return pkcs1_encrypt(1, (struct crypto_rsa_key *) key, 86 1, in, inlen, out, outlen); 87} 88 89 90void crypto_public_key_free(struct crypto_public_key *key) 91{ 92 crypto_rsa_free((struct crypto_rsa_key *) key); 93} 94 95 96void crypto_private_key_free(struct crypto_private_key *key) 97{ 98 crypto_rsa_free((struct crypto_rsa_key *) key); 99} 100 101 102int crypto_public_key_decrypt_pkcs1(struct crypto_public_key *key, 103 const u8 *crypt, size_t crypt_len, 104 u8 *plain, size_t *plain_len) 105{ 106 return pkcs1_decrypt_public_key((struct crypto_rsa_key *) key, 107 crypt, crypt_len, plain, plain_len); 108} 109