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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23723 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-09-01 11:34:24 +00:00
parent 2ab404f86b
commit 901bd0334c
1 changed files with 48 additions and 13 deletions
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61
lib/krb5/crypto.c
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@@ -3140,6 +3140,16 @@ decrypt_internal_special(krb5_context context,
return 0; return 0;
} }
static krb5_crypto_iov *
find_iv(krb5_crypto_iov *data, int num_data, int type)
{
int i;
for (i = 0; i < num_data; i++)
if (data[i].flags == type)
return &data[i];
return NULL;
}
/** /**
* Inline encrypt a kerberos message * Inline encrypt a kerberos message
* *
@@ -3160,19 +3170,10 @@ decrypt_internal_special(krb5_context context,
* any order, however the receiver have to aware of the * any order, however the receiver have to aware of the
* order. KRB5_CRYPTO_TYPE_SIGN_ONLY is commonly used headers and * order. KRB5_CRYPTO_TYPE_SIGN_ONLY is commonly used headers and
* trailers. * trailers.
* 3. KRB5_CRYPTO_TYPE_TRAILER * 3. KRB5_CRYPTO_TYPE_PADDING, at least on padsize long if padsize > 1
* 4. KRB5_CRYPTO_TYPE_TRAILER
*/ */
static krb5_crypto_iov *
find_iv(krb5_crypto_iov *data, int num_data, int type)
{
int i;
for (i = 0; i < num_data; i++)
if (data[i].flags == type)
return &data[i];
return NULL;
}
krb5_error_code KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_FUNCTION
krb5_encrypt_iov_ivec(krb5_context context, krb5_encrypt_iov_ivec(krb5_context context,
krb5_crypto crypto, krb5_crypto crypto,
@@ -3352,6 +3353,27 @@ krb5_encrypt_iov_ivec(krb5_context context,
return ret; return ret;
} }
/**
* Inline decrypt a Kerberos message.
*
* @param context Kerberos context
* @param crypto Kerberos crypto context
* @param usage Key usage for this buffer
* @param data array of buffers to process
* @param num_data length of array
* @param ivec initial cbc/cts vector
*
* @return Return an error code or 0.
* @ingroup krb5_crypto
*
* 1. KRB5_CRYPTO_TYPE_HEADER
* 2. array KRB5_CRYPTO_TYPE_DATA and KRB5_CRYPTO_TYPE_SIGN_ONLY in
* any order, however the receiver have to aware of the
* order. KRB5_CRYPTO_TYPE_SIGN_ONLY is commonly used unencrypoted
* protocol headers and trailers. The output data will be of same
* size as the input data or shorter.
*/
krb5_error_code KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_FUNCTION
krb5_decrypt_iov_ivec(krb5_context context, krb5_decrypt_iov_ivec(krb5_context context,
krb5_crypto crypto, krb5_crypto crypto,
@@ -3498,11 +3520,24 @@ krb5_decrypt_iov_ivec(krb5_context context,
return 0; return 0;
} }
/**
* Create a Kerberos message checksum.
*
* @param context Kerberos context
* @param crypto Kerberos crypto context
* @param usage Key usage for this buffer
* @param data array of buffers to process
* @param num_data length of array
* @param result output data
*
* @return Return an error code or 0.
* @ingroup krb5_crypto
*/
krb5_error_code KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_FUNCTION
krb5_create_checksum_iov(krb5_context context, krb5_create_checksum_iov(krb5_context context,
krb5_crypto crypto, krb5_crypto crypto,
unsigned usage, unsigned usage,
int type,
krb5_crypto_iov *data, krb5_crypto_iov *data,
size_t num_data, size_t num_data,
Checksum *result) Checksum *result)
@@ -3531,7 +3566,7 @@ krb5_create_checksum_iov(krb5_context context,
} }
ret = krb5_create_checksum(context, crypto, usage, ret = krb5_create_checksum(context, crypto, usage,
type, p, len, result); p, len, result);
free(p); free(p);
return ret; return ret;
} }