diff options
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/evp/e_rc5.c')
-rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/evp/e_rc5.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/evp/e_rc5.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/evp/e_rc5.c new file mode 100644 index 000000000..c86e87b65 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/evp/e_rc5.c @@ -0,0 +1,78 @@ +/* + * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" + +#ifndef OPENSSL_NO_RC5 + +# include <openssl/evp.h> +# include "crypto/evp.h" +# include <openssl/objects.h> +# include "evp_local.h" +# include <openssl/rc5.h> + +static int r_32_12_16_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc); +static int rc5_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); + +typedef struct { + int rounds; /* number of rounds */ + RC5_32_KEY ks; /* key schedule */ +} EVP_RC5_KEY; + +# define data(ctx) EVP_C_DATA(EVP_RC5_KEY,ctx) + +IMPLEMENT_BLOCK_CIPHER(rc5_32_12_16, ks, RC5_32, EVP_RC5_KEY, NID_rc5, + 8, RC5_32_KEY_LENGTH, 8, 64, + EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT, + r_32_12_16_init_key, NULL, NULL, NULL, rc5_ctrl) + +static int rc5_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) +{ + switch (type) { + case EVP_CTRL_INIT: + data(c)->rounds = RC5_12_ROUNDS; + return 1; + + case EVP_CTRL_GET_RC5_ROUNDS: + *(int *)ptr = data(c)->rounds; + return 1; + + case EVP_CTRL_SET_RC5_ROUNDS: + switch (arg) { + case RC5_8_ROUNDS: + case RC5_12_ROUNDS: + case RC5_16_ROUNDS: + data(c)->rounds = arg; + return 1; + + default: + EVPerr(EVP_F_RC5_CTRL, EVP_R_UNSUPPORTED_NUMBER_OF_ROUNDS); + return 0; + } + + default: + return -1; + } +} + +static int r_32_12_16_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + if (EVP_CIPHER_CTX_key_length(ctx) > 255) { + EVPerr(EVP_F_R_32_12_16_INIT_KEY, EVP_R_BAD_KEY_LENGTH); + return 0; + } + RC5_32_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), + key, data(ctx)->rounds); + return 1; +} + +#endif |