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-rw-r--r--crypto/heimdal/lib/krb5/mit_glue.c369
1 files changed, 369 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/krb5/mit_glue.c b/crypto/heimdal/lib/krb5/mit_glue.c
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+++ b/crypto/heimdal/lib/krb5/mit_glue.c
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+/*
+ * Copyright (c) 2003 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * 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.
+ */
+
+#include "krb5_locl.h"
+RCSID("$Id: mit_glue.c 20042 2007-01-23 20:37:43Z lha $");
+
+/*
+ * Glue for MIT API
+ */
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_make_checksum(krb5_context context,
+ krb5_cksumtype cksumtype,
+ const krb5_keyblock *key,
+ krb5_keyusage usage,
+ const krb5_data *input,
+ krb5_checksum *cksum)
+{
+ krb5_error_code ret;
+ krb5_crypto crypto;
+
+ ret = krb5_crypto_init(context, key, 0, &crypto);
+ if (ret)
+ return ret;
+
+ ret = krb5_create_checksum(context, crypto, usage, cksumtype,
+ input->data, input->length, cksum);
+ krb5_crypto_destroy(context, crypto);
+
+ return ret ;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_verify_checksum(krb5_context context, const krb5_keyblock *key,
+ krb5_keyusage usage, const krb5_data *data,
+ const krb5_checksum *cksum, krb5_boolean *valid)
+{
+ krb5_error_code ret;
+ krb5_checksum data_cksum;
+
+ *valid = 0;
+
+ ret = krb5_c_make_checksum(context, cksum->cksumtype,
+ key, usage, data, &data_cksum);
+ if (ret)
+ return ret;
+
+ if (data_cksum.cksumtype == cksum->cksumtype
+ && data_cksum.checksum.length == cksum->checksum.length
+ && memcmp(data_cksum.checksum.data, cksum->checksum.data, cksum->checksum.length) == 0)
+ *valid = 1;
+
+ krb5_free_checksum_contents(context, &data_cksum);
+
+ return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_get_checksum(krb5_context context, const krb5_checksum *cksum,
+ krb5_cksumtype *type, krb5_data **data)
+{
+ krb5_error_code ret;
+
+ if (type)
+ *type = cksum->cksumtype;
+ if (data) {
+ *data = malloc(sizeof(**data));
+ if (*data == NULL)
+ return ENOMEM;
+
+ ret = der_copy_octet_string(&cksum->checksum, *data);
+ if (ret) {
+ free(*data);
+ *data = NULL;
+ return ret;
+ }
+ }
+ return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_set_checksum(krb5_context context, krb5_checksum *cksum,
+ krb5_cksumtype type, const krb5_data *data)
+{
+ cksum->cksumtype = type;
+ return der_copy_octet_string(data, &cksum->checksum);
+}
+
+void KRB5_LIB_FUNCTION
+krb5_free_checksum (krb5_context context, krb5_checksum *cksum)
+{
+ krb5_checksum_free(context, cksum);
+ free(cksum);
+}
+
+void KRB5_LIB_FUNCTION
+krb5_free_checksum_contents(krb5_context context, krb5_checksum *cksum)
+{
+ krb5_checksum_free(context, cksum);
+ memset(cksum, 0, sizeof(*cksum));
+}
+
+void KRB5_LIB_FUNCTION
+krb5_checksum_free(krb5_context context, krb5_checksum *cksum)
+{
+ free_Checksum(cksum);
+}
+
+krb5_boolean KRB5_LIB_FUNCTION
+krb5_c_valid_enctype (krb5_enctype etype)
+{
+ return krb5_enctype_valid(NULL, etype);
+}
+
+krb5_boolean KRB5_LIB_FUNCTION
+krb5_c_valid_cksumtype(krb5_cksumtype ctype)
+{
+ return krb5_cksumtype_valid(NULL, ctype);
+}
+
+krb5_boolean KRB5_LIB_FUNCTION
+krb5_c_is_coll_proof_cksum(krb5_cksumtype ctype)
+{
+ return krb5_checksum_is_collision_proof(NULL, ctype);
+}
+
+krb5_boolean KRB5_LIB_FUNCTION
+krb5_c_is_keyed_cksum(krb5_cksumtype ctype)
+{
+ return krb5_checksum_is_keyed(NULL, ctype);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_copy_checksum (krb5_context context,
+ const krb5_checksum *old,
+ krb5_checksum **new)
+{
+ *new = malloc(sizeof(**new));
+ if (*new == NULL)
+ return ENOMEM;
+ return copy_Checksum(old, *new);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_checksum_length (krb5_context context, krb5_cksumtype cksumtype,
+ size_t *length)
+{
+ return krb5_checksumsize(context, cksumtype, length);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_block_size(krb5_context context,
+ krb5_enctype enctype,
+ size_t *blocksize)
+{
+ krb5_error_code ret;
+ krb5_crypto crypto;
+ krb5_keyblock key;
+
+ ret = krb5_generate_random_keyblock(context, enctype, &key);
+ if (ret)
+ return ret;
+
+ ret = krb5_crypto_init(context, &key, 0, &crypto);
+ krb5_free_keyblock_contents(context, &key);
+ if (ret)
+ return ret;
+ ret = krb5_crypto_getblocksize(context, crypto, blocksize);
+ krb5_crypto_destroy(context, crypto);
+
+ return ret;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_decrypt(krb5_context context,
+ const krb5_keyblock key,
+ krb5_keyusage usage,
+ const krb5_data *ivec,
+ krb5_enc_data *input,
+ krb5_data *output)
+{
+ krb5_error_code ret;
+ krb5_crypto crypto;
+
+ ret = krb5_crypto_init(context, &key, input->enctype, &crypto);
+ if (ret)
+ return ret;
+
+ if (ivec) {
+ size_t blocksize;
+
+ ret = krb5_crypto_getblocksize(context, crypto, &blocksize);
+ if (ret) {
+ krb5_crypto_destroy(context, crypto);
+ return ret;
+ }
+
+ if (blocksize > ivec->length) {
+ krb5_crypto_destroy(context, crypto);
+ return KRB5_BAD_MSIZE;
+ }
+ }
+
+ ret = krb5_decrypt_ivec(context, crypto, usage,
+ input->ciphertext.data, input->ciphertext.length,
+ output,
+ ivec ? ivec->data : NULL);
+
+ krb5_crypto_destroy(context, crypto);
+
+ return ret ;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_encrypt(krb5_context context,
+ const krb5_keyblock *key,
+ krb5_keyusage usage,
+ const krb5_data *ivec,
+ const krb5_data *input,
+ krb5_enc_data *output)
+{
+ krb5_error_code ret;
+ krb5_crypto crypto;
+
+ ret = krb5_crypto_init(context, key, 0, &crypto);
+ if (ret)
+ return ret;
+
+ if (ivec) {
+ size_t blocksize;
+
+ ret = krb5_crypto_getblocksize(context, crypto, &blocksize);
+ if (ret) {
+ krb5_crypto_destroy(context, crypto);
+ return ret;
+ }
+
+ if (blocksize > ivec->length) {
+ krb5_crypto_destroy(context, crypto);
+ return KRB5_BAD_MSIZE;
+ }
+ }
+
+ ret = krb5_encrypt_ivec(context, crypto, usage,
+ input->data, input->length,
+ &output->ciphertext,
+ ivec ? ivec->data : NULL);
+ output->kvno = 0;
+ krb5_crypto_getenctype(context, crypto, &output->enctype);
+
+ krb5_crypto_destroy(context, crypto);
+
+ return ret ;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_encrypt_length(krb5_context context,
+ krb5_enctype enctype,
+ size_t inputlen,
+ size_t *length)
+{
+ krb5_error_code ret;
+ krb5_crypto crypto;
+ krb5_keyblock key;
+
+ ret = krb5_generate_random_keyblock(context, enctype, &key);
+ if (ret)
+ return ret;
+
+ ret = krb5_crypto_init(context, &key, 0, &crypto);
+ krb5_free_keyblock_contents(context, &key);
+ if (ret)
+ return ret;
+
+ *length = krb5_get_wrapped_length(context, crypto, inputlen);
+ krb5_crypto_destroy(context, crypto);
+
+ return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_enctype_compare(krb5_context context,
+ krb5_enctype e1,
+ krb5_enctype e2,
+ krb5_boolean *similar)
+{
+ *similar = krb5_enctypes_compatible_keys(context, e1, e2);
+ return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_make_random_key(krb5_context context,
+ krb5_enctype enctype,
+ krb5_keyblock *random_key)
+{
+ return krb5_generate_random_keyblock(context, enctype, random_key);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_keylengths(krb5_context context,
+ krb5_enctype enctype,
+ size_t *ilen,
+ size_t *keylen)
+{
+ krb5_error_code ret;
+
+ ret = krb5_enctype_keybits(context, enctype, ilen);
+ if (ret)
+ return ret;
+ *ilen = (*ilen + 7) / 8;
+ return krb5_enctype_keysize(context, enctype, keylen);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_prf_length(krb5_context context,
+ krb5_enctype type,
+ size_t *length)
+{
+ return krb5_crypto_prf_length(context, type, length);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_c_prf(krb5_context context,
+ const krb5_keyblock *key,
+ const krb5_data *input,
+ krb5_data *output)
+{
+ krb5_crypto crypto;
+ krb5_error_code ret;
+
+ ret = krb5_crypto_init(context, key, 0, &crypto);
+ if (ret)
+ return ret;
+
+ ret = krb5_crypto_prf(context, crypto, input, output);
+ krb5_crypto_destroy(context, crypto);
+
+ return ret;
+}
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