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first version of krb5_c encryption glue

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12448 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2003-07-18 22:00:21 +00:00
parent d8b9601aae
commit 144d4010c3
1 changed files with 141 additions and 1 deletions
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142
lib/krb5/mit_glue.c
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@@ -49,7 +49,7 @@ krb5_c_make_checksum(krb5_context context,
krb5_error_code ret;
krb5_crypto crypto;
ret = krb5_crypto_init(context, key, ETYPE_NULL, &crypto);
ret = krb5_crypto_init(context, key, 0, &crypto);
if (ret)
return ret;
@@ -147,3 +147,143 @@ krb5_c_checksum_length (krb5_context context, krb5_cksumtype cksumtype,
{
return krb5_checksumsize(context, cksumtype, length);
}
krb5_error_code
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_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;
size_t blocksize;
ret = krb5_crypto_init(context, &key, input->enctype, &crypto);
if (ret)
return ret;
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 EINVAL; /* XXX */
}
ret = krb5_decrypt_ivec(context, crypto, usage,
input->ciphertext.data, input->ciphertext.length,
output, ivec->data);
krb5_crypto_destroy(context, crypto);
return ret ;
}
krb5_error_code
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;
size_t blocksize;
ret = krb5_crypto_init(context, key, 0, &crypto);
if (ret)
return ret;
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 EINVAL; /* XXX */
}
ret = krb5_encrypt_ivec(context, crypto, usage,
input->data, input->length,
&output->ciphertext, ivec->data);
output->kvno = 0;
krb5_crypto_getenctype(context, crypto, &output->enctype);
krb5_crypto_destroy(context, crypto);
return ret ;
}
krb5_error_code
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_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_c_make_random_key(krb5_context context,
krb5_enctype enctype,
krb5_keyblock *random_key)
{
return krb5_generate_random_keyblock(context, enctype, random_key);
}