mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
344 lines
11 KiB
C
344 lines
11 KiB
C
/*
|
|
* QEMU Crypto hash algorithms
|
|
*
|
|
* Copyright (c) 2024 Seagate Technology LLC and/or its Affiliates
|
|
* Copyright (c) 2015 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef QCRYPTO_HASH_H
|
|
#define QCRYPTO_HASH_H
|
|
|
|
#include "qapi/qapi-types-crypto.h"
|
|
|
|
#define QCRYPTO_HASH_DIGEST_LEN_MD5 16
|
|
#define QCRYPTO_HASH_DIGEST_LEN_SHA1 20
|
|
#define QCRYPTO_HASH_DIGEST_LEN_SHA224 28
|
|
#define QCRYPTO_HASH_DIGEST_LEN_SHA256 32
|
|
#define QCRYPTO_HASH_DIGEST_LEN_SHA384 48
|
|
#define QCRYPTO_HASH_DIGEST_LEN_SHA512 64
|
|
#define QCRYPTO_HASH_DIGEST_LEN_RIPEMD160 20
|
|
#define QCRYPTO_HASH_DIGEST_LEN_SM3 32
|
|
|
|
/* See also "QCryptoHashAlgo" defined in qapi/crypto.json */
|
|
|
|
typedef struct QCryptoHash QCryptoHash;
|
|
struct QCryptoHash {
|
|
QCryptoHashAlgo alg;
|
|
void *opaque;
|
|
void *driver;
|
|
};
|
|
|
|
/**
|
|
* qcrypto_hash_supports:
|
|
* @alg: the hash algorithm
|
|
*
|
|
* Determine if @alg hash algorithm is supported by the
|
|
* current configured build.
|
|
*
|
|
* Returns: true if the algorithm is supported, false otherwise
|
|
*/
|
|
gboolean qcrypto_hash_supports(QCryptoHashAlgo alg);
|
|
|
|
|
|
/**
|
|
* qcrypto_hash_digest_len:
|
|
* @alg: the hash algorithm
|
|
*
|
|
* Determine the size of the hash digest in bytes
|
|
*
|
|
* Returns: the digest length in bytes
|
|
*/
|
|
size_t qcrypto_hash_digest_len(QCryptoHashAlgo alg);
|
|
|
|
/**
|
|
* qcrypto_hash_bytesv:
|
|
* @alg: the hash algorithm
|
|
* @iov: the array of memory regions to hash
|
|
* @niov: the length of @iov
|
|
* @result: pointer to hold output hash
|
|
* @resultlen: pointer to hold length of @result
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash across all the memory regions
|
|
* present in @iov.
|
|
*
|
|
* If @result_len is set to a non-zero value by the caller, then
|
|
* @result must hold a pointer that is @result_len in size, and
|
|
* @result_len match the size of the hash output. The digest will
|
|
* be written into @result.
|
|
*
|
|
* If @result_len is set to zero, then this function will allocate
|
|
* a buffer to hold the hash output digest, storing a pointer to
|
|
* the buffer in @result, and setting @result_len to its size.
|
|
* The memory referenced in @result must be released with a call
|
|
* to g_free() when no longer required by the caller.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_bytesv(QCryptoHashAlgo alg,
|
|
const struct iovec *iov,
|
|
size_t niov,
|
|
uint8_t **result,
|
|
size_t *resultlen,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_bytes:
|
|
* @alg: the hash algorithm
|
|
* @buf: the memory region to hash
|
|
* @len: the length of @buf
|
|
* @result: pointer to hold output hash
|
|
* @resultlen: pointer to hold length of @result
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash across all the memory region
|
|
* @buf of length @len.
|
|
*
|
|
* If @result_len is set to a non-zero value by the caller, then
|
|
* @result must hold a pointer that is @result_len in size, and
|
|
* @result_len match the size of the hash output. The digest will
|
|
* be written into @result.
|
|
*
|
|
* If @result_len is set to zero, then this function will allocate
|
|
* a buffer to hold the hash output digest, storing a pointer to
|
|
* the buffer in @result, and setting @result_len to its size.
|
|
* The memory referenced in @result must be released with a call
|
|
* to g_free() when no longer required by the caller.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_bytes(QCryptoHashAlgo alg,
|
|
const char *buf,
|
|
size_t len,
|
|
uint8_t **result,
|
|
size_t *resultlen,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_digestv:
|
|
* @alg: the hash algorithm
|
|
* @iov: the array of memory regions to hash
|
|
* @niov: the length of @iov
|
|
* @digest: pointer to hold output hash
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash across all the memory regions
|
|
* present in @iov. The @digest pointer will be
|
|
* filled with the printable hex digest of the computed
|
|
* hash, which will be terminated by '\0'. The
|
|
* memory pointer in @digest must be released
|
|
* with a call to g_free() when no longer required.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_digestv(QCryptoHashAlgo alg,
|
|
const struct iovec *iov,
|
|
size_t niov,
|
|
char **digest,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_updatev:
|
|
* @hash: hash object from qcrypto_hash_new
|
|
* @iov: the array of memory regions to hash
|
|
* @niov: the length of @iov
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Updates the given hash object with all the memory regions
|
|
* present in @iov.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_updatev(QCryptoHash *hash,
|
|
const struct iovec *iov,
|
|
size_t niov,
|
|
Error **errp);
|
|
/**
|
|
* qcrypto_hash_update:
|
|
* @hash: hash object from qcrypto_hash_new
|
|
* @buf: the memory region to hash
|
|
* @len: the length of @buf
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Updates the given hash object with the data from
|
|
* the given buffer.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_update(QCryptoHash *hash,
|
|
const char *buf,
|
|
size_t len,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_finalize_digest:
|
|
* @hash: the hash object to finalize
|
|
* @digest: pointer to hold output hash
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash from the given hash object. Hash object
|
|
* is expected to have its data updated from the qcrypto_hash_update function.
|
|
* The @digest pointer will be filled with the printable hex digest of the
|
|
* computed hash, which will be terminated by '\0'. The memory pointer
|
|
* in @digest must be released with a call to g_free() when
|
|
* no longer required.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_finalize_digest(QCryptoHash *hash,
|
|
char **digest,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_finalize_base64:
|
|
* @hash_ctx: hash object to finalize
|
|
* @base64: pointer to store the hash result in
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash from the given hash object. Hash object
|
|
* is expected to have it's data updated from the qcrypto_hash_update function.
|
|
* The @base64 pointer will be filled with the base64 encoding of the computed
|
|
* hash, which will be terminated by '\0'. The memory pointer in @base64
|
|
* must be released with a call to g_free() when no longer required.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_finalize_base64(QCryptoHash *hash,
|
|
char **base64,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_finalize_bytes:
|
|
* @hash_ctx: hash object to finalize
|
|
* @result: pointer to store the hash result in
|
|
* @result_len: Pointer to store the length of the result in
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash from the given hash object. Hash object
|
|
* is expected to have it's data updated from the qcrypto_hash_update function.
|
|
*
|
|
* If @result_len is set to a non-zero value by the caller, then
|
|
* @result must hold a pointer that is @result_len in size, and
|
|
* @result_len match the size of the hash output. The digest will
|
|
* be written into @result.
|
|
*
|
|
* If @result_len is set to zero, then this function will allocate
|
|
* a buffer to hold the hash output digest, storing a pointer to
|
|
* the buffer in @result, and setting @result_len to its size.
|
|
* The memory referenced in @result must be released with a call
|
|
* to g_free() when no longer required by the caller.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_finalize_bytes(QCryptoHash *hash,
|
|
uint8_t **result,
|
|
size_t *result_len,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_new:
|
|
* @alg: the hash algorithm
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Creates a new hashing context for the chosen algorithm for
|
|
* usage with qcrypto_hash_update.
|
|
*
|
|
* Returns: New hash object with the given algorithm, or NULL on error.
|
|
*/
|
|
QCryptoHash *qcrypto_hash_new(QCryptoHashAlgo alg, Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_free:
|
|
* @hash: hash object to free
|
|
*
|
|
* Frees a hashing context for the chosen algorithm.
|
|
*/
|
|
void qcrypto_hash_free(QCryptoHash *hash);
|
|
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(QCryptoHash, qcrypto_hash_free)
|
|
|
|
/**
|
|
* qcrypto_hash_digest:
|
|
* @alg: the hash algorithm
|
|
* @buf: the memory region to hash
|
|
* @len: the length of @buf
|
|
* @digest: pointer to hold output hash
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash across all the memory region
|
|
* @buf of length @len. The @digest pointer will be
|
|
* filled with the printable hex digest of the computed
|
|
* hash, which will be terminated by '\0'. The
|
|
* memory pointer in @digest must be released
|
|
* with a call to g_free() when no longer required.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_digest(QCryptoHashAlgo alg,
|
|
const char *buf,
|
|
size_t len,
|
|
char **digest,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_base64v:
|
|
* @alg: the hash algorithm
|
|
* @iov: the array of memory regions to hash
|
|
* @niov: the length of @iov
|
|
* @base64: pointer to hold output hash
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash across all the memory regions
|
|
* present in @iov. The @base64 pointer will be
|
|
* filled with the base64 encoding of the computed
|
|
* hash, which will be terminated by '\0'. The
|
|
* memory pointer in @base64 must be released
|
|
* with a call to g_free() when no longer required.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_base64v(QCryptoHashAlgo alg,
|
|
const struct iovec *iov,
|
|
size_t niov,
|
|
char **base64,
|
|
Error **errp);
|
|
|
|
/**
|
|
* qcrypto_hash_base64:
|
|
* @alg: the hash algorithm
|
|
* @buf: the memory region to hash
|
|
* @len: the length of @buf
|
|
* @base64: pointer to hold output hash
|
|
* @errp: pointer to a NULL-initialized error object
|
|
*
|
|
* Computes the hash across all the memory region
|
|
* @buf of length @len. The @base64 pointer will be
|
|
* filled with the base64 encoding of the computed
|
|
* hash, which will be terminated by '\0'. The
|
|
* memory pointer in @base64 must be released
|
|
* with a call to g_free() when no longer required.
|
|
*
|
|
* Returns: 0 on success, -1 on error
|
|
*/
|
|
int qcrypto_hash_base64(QCryptoHashAlgo alg,
|
|
const char *buf,
|
|
size_t len,
|
|
char **base64,
|
|
Error **errp);
|
|
|
|
#endif /* QCRYPTO_HASH_H */
|