aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/evp/e_rc2.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/evp/e_rc2.c')
-rw-r--r--crypto/evp/e_rc2.c303
1 files changed, 150 insertions, 153 deletions
diff --git a/crypto/evp/e_rc2.c b/crypto/evp/e_rc2.c
index d4c33b58d4d5..718cc8694fe3 100644
--- a/crypto/evp/e_rc2.c
+++ b/crypto/evp/e_rc2.c
@@ -5,21 +5,21 @@
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -34,10 +34,10 @@
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
@@ -61,178 +61,175 @@
#ifndef OPENSSL_NO_RC2
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include "evp_locl.h"
-#include <openssl/rc2.h>
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include "evp_locl.h"
+# include <openssl/rc2.h>
static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv,int enc);
+ const unsigned char *iv, int enc);
static int rc2_meth_to_magic(EVP_CIPHER_CTX *ctx);
static int rc2_magic_to_meth(int i);
static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
-typedef struct
- {
- int key_bits; /* effective key bits */
- RC2_KEY ks; /* key schedule */
- } EVP_RC2_KEY;
+typedef struct {
+ int key_bits; /* effective key bits */
+ RC2_KEY ks; /* key schedule */
+} EVP_RC2_KEY;
-#define data(ctx) ((EVP_RC2_KEY *)(ctx)->cipher_data)
+# define data(ctx) ((EVP_RC2_KEY *)(ctx)->cipher_data)
IMPLEMENT_BLOCK_CIPHER(rc2, ks, RC2, EVP_RC2_KEY, NID_rc2,
- 8,
- RC2_KEY_LENGTH, 8, 64,
- EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
- rc2_init_key, NULL,
- rc2_set_asn1_type_and_iv, rc2_get_asn1_type_and_iv,
- rc2_ctrl)
-
-#define RC2_40_MAGIC 0xa0
-#define RC2_64_MAGIC 0x78
-#define RC2_128_MAGIC 0x3a
-
-static const EVP_CIPHER r2_64_cbc_cipher=
- {
- NID_rc2_64_cbc,
- 8,8 /* 64 bit */,8,
- EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
- rc2_init_key,
- rc2_cbc_cipher,
- NULL,
- sizeof(EVP_RC2_KEY),
- rc2_set_asn1_type_and_iv,
- rc2_get_asn1_type_and_iv,
- rc2_ctrl,
- NULL
- };
-
-static const EVP_CIPHER r2_40_cbc_cipher=
- {
- NID_rc2_40_cbc,
- 8,5 /* 40 bit */,8,
- EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
- rc2_init_key,
- rc2_cbc_cipher,
- NULL,
- sizeof(EVP_RC2_KEY),
- rc2_set_asn1_type_and_iv,
- rc2_get_asn1_type_and_iv,
- rc2_ctrl,
- NULL
- };
+ 8,
+ RC2_KEY_LENGTH, 8, 64,
+ EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+ rc2_init_key, NULL,
+ rc2_set_asn1_type_and_iv, rc2_get_asn1_type_and_iv,
+ rc2_ctrl)
+# define RC2_40_MAGIC 0xa0
+# define RC2_64_MAGIC 0x78
+# define RC2_128_MAGIC 0x3a
+static const EVP_CIPHER r2_64_cbc_cipher = {
+ NID_rc2_64_cbc,
+ 8, 8 /* 64 bit */ , 8,
+ EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+ rc2_init_key,
+ rc2_cbc_cipher,
+ NULL,
+ sizeof(EVP_RC2_KEY),
+ rc2_set_asn1_type_and_iv,
+ rc2_get_asn1_type_and_iv,
+ rc2_ctrl,
+ NULL
+};
+
+static const EVP_CIPHER r2_40_cbc_cipher = {
+ NID_rc2_40_cbc,
+ 8, 5 /* 40 bit */ , 8,
+ EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+ rc2_init_key,
+ rc2_cbc_cipher,
+ NULL,
+ sizeof(EVP_RC2_KEY),
+ rc2_set_asn1_type_and_iv,
+ rc2_get_asn1_type_and_iv,
+ rc2_ctrl,
+ NULL
+};
const EVP_CIPHER *EVP_rc2_64_cbc(void)
- {
- return(&r2_64_cbc_cipher);
- }
+{
+ return (&r2_64_cbc_cipher);
+}
const EVP_CIPHER *EVP_rc2_40_cbc(void)
- {
- return(&r2_40_cbc_cipher);
- }
-
+{
+ return (&r2_40_cbc_cipher);
+}
+
static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc)
- {
- RC2_set_key(&data(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx),
- key,data(ctx)->key_bits);
- return 1;
- }
+ const unsigned char *iv, int enc)
+{
+ RC2_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx),
+ key, data(ctx)->key_bits);
+ return 1;
+}
static int rc2_meth_to_magic(EVP_CIPHER_CTX *e)
- {
- int i;
-
- EVP_CIPHER_CTX_ctrl(e, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i);
- if (i == 128) return(RC2_128_MAGIC);
- else if (i == 64) return(RC2_64_MAGIC);
- else if (i == 40) return(RC2_40_MAGIC);
- else return(0);
- }
+{
+ int i;
+
+ EVP_CIPHER_CTX_ctrl(e, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i);
+ if (i == 128)
+ return (RC2_128_MAGIC);
+ else if (i == 64)
+ return (RC2_64_MAGIC);
+ else if (i == 40)
+ return (RC2_40_MAGIC);
+ else
+ return (0);
+}
static int rc2_magic_to_meth(int i)
- {
- if (i == RC2_128_MAGIC) return 128;
- else if (i == RC2_64_MAGIC) return 64;
- else if (i == RC2_40_MAGIC) return 40;
- else
- {
- EVPerr(EVP_F_RC2_MAGIC_TO_METH,EVP_R_UNSUPPORTED_KEY_SIZE);
- return(0);
- }
- }
+{
+ if (i == RC2_128_MAGIC)
+ return 128;
+ else if (i == RC2_64_MAGIC)
+ return 64;
+ else if (i == RC2_40_MAGIC)
+ return 40;
+ else {
+ EVPerr(EVP_F_RC2_MAGIC_TO_METH, EVP_R_UNSUPPORTED_KEY_SIZE);
+ return (0);
+ }
+}
static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
- {
- long num=0;
- int i=0;
- int key_bits;
- unsigned int l;
- unsigned char iv[EVP_MAX_IV_LENGTH];
-
- if (type != NULL)
- {
- l=EVP_CIPHER_CTX_iv_length(c);
- OPENSSL_assert(l <= sizeof(iv));
- i=ASN1_TYPE_get_int_octetstring(type,&num,iv,l);
- if (i != (int)l)
- return(-1);
- key_bits =rc2_magic_to_meth((int)num);
- if (!key_bits)
- return(-1);
- if(i > 0 && !EVP_CipherInit_ex(c, NULL, NULL, NULL, iv, -1))
- return -1;
- EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_RC2_KEY_BITS, key_bits, NULL);
- EVP_CIPHER_CTX_set_key_length(c, key_bits / 8);
- }
- return(i);
- }
+{
+ long num = 0;
+ int i = 0;
+ int key_bits;
+ unsigned int l;
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+
+ if (type != NULL) {
+ l = EVP_CIPHER_CTX_iv_length(c);
+ OPENSSL_assert(l <= sizeof(iv));
+ i = ASN1_TYPE_get_int_octetstring(type, &num, iv, l);
+ if (i != (int)l)
+ return (-1);
+ key_bits = rc2_magic_to_meth((int)num);
+ if (!key_bits)
+ return (-1);
+ if (i > 0 && !EVP_CipherInit_ex(c, NULL, NULL, NULL, iv, -1))
+ return -1;
+ EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_RC2_KEY_BITS, key_bits, NULL);
+ EVP_CIPHER_CTX_set_key_length(c, key_bits / 8);
+ }
+ return (i);
+}
static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
- {
- long num;
- int i=0,j;
-
- if (type != NULL)
- {
- num=rc2_meth_to_magic(c);
- j=EVP_CIPHER_CTX_iv_length(c);
- i=ASN1_TYPE_set_int_octetstring(type,num,c->oiv,j);
- }
- return(i);
- }
+{
+ long num;
+ int i = 0, j;
+
+ if (type != NULL) {
+ num = rc2_meth_to_magic(c);
+ j = EVP_CIPHER_CTX_iv_length(c);
+ i = ASN1_TYPE_set_int_octetstring(type, num, c->oiv, j);
+ }
+ return (i);
+}
static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
- {
- switch(type)
- {
- case EVP_CTRL_INIT:
- data(c)->key_bits = EVP_CIPHER_CTX_key_length(c) * 8;
- return 1;
-
- case EVP_CTRL_GET_RC2_KEY_BITS:
- *(int *)ptr = data(c)->key_bits;
- return 1;
-
- case EVP_CTRL_SET_RC2_KEY_BITS:
- if(arg > 0)
- {
- data(c)->key_bits = arg;
- return 1;
- }
- return 0;
-#ifdef PBE_PRF_TEST
- case EVP_CTRL_PBE_PRF_NID:
- *(int *)ptr = NID_hmacWithMD5;
- return 1;
-#endif
-
- default:
- return -1;
- }
- }
+{
+ switch (type) {
+ case EVP_CTRL_INIT:
+ data(c)->key_bits = EVP_CIPHER_CTX_key_length(c) * 8;
+ return 1;
+
+ case EVP_CTRL_GET_RC2_KEY_BITS:
+ *(int *)ptr = data(c)->key_bits;
+ return 1;
+
+ case EVP_CTRL_SET_RC2_KEY_BITS:
+ if (arg > 0) {
+ data(c)->key_bits = arg;
+ return 1;
+ }
+ return 0;
+# ifdef PBE_PRF_TEST
+ case EVP_CTRL_PBE_PRF_NID:
+ *(int *)ptr = NID_hmacWithMD5;
+ return 1;
+# endif
+
+ default:
+ return -1;
+ }
+}
#endif