Mbed TLS v2.28.8
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Public Key abstraction layer. More...
#include "mbedtls/config.h"
#include "mbedtls/md.h"
#include "mbedtls/rsa.h"
#include "mbedtls/ecp.h"
#include "mbedtls/ecdsa.h"
Go to the source code of this file.
Data Structures | |
struct | mbedtls_pk_rsassa_pss_options |
Options for RSASSA-PSS signature verification. See mbedtls_rsa_rsassa_pss_verify_ext() More... | |
struct | mbedtls_pk_debug_item |
Item to send to the debug module. More... | |
struct | mbedtls_pk_context |
Public key container. More... | |
Macros | |
#define | MBEDTLS_ERR_PK_ALLOC_FAILED -0x3F80 |
#define | MBEDTLS_ERR_PK_TYPE_MISMATCH -0x3F00 |
#define | MBEDTLS_ERR_PK_BAD_INPUT_DATA -0x3E80 |
#define | MBEDTLS_ERR_PK_FILE_IO_ERROR -0x3E00 |
#define | MBEDTLS_ERR_PK_KEY_INVALID_VERSION -0x3D80 |
#define | MBEDTLS_ERR_PK_KEY_INVALID_FORMAT -0x3D00 |
#define | MBEDTLS_ERR_PK_UNKNOWN_PK_ALG -0x3C80 |
#define | MBEDTLS_ERR_PK_PASSWORD_REQUIRED -0x3C00 |
#define | MBEDTLS_ERR_PK_PASSWORD_MISMATCH -0x3B80 |
#define | MBEDTLS_ERR_PK_INVALID_PUBKEY -0x3B00 |
#define | MBEDTLS_ERR_PK_INVALID_ALG -0x3A80 |
#define | MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE -0x3A00 |
#define | MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE -0x3980 |
#define | MBEDTLS_ERR_PK_SIG_LEN_MISMATCH -0x3900 |
#define | MBEDTLS_ERR_PK_HW_ACCEL_FAILED -0x3880 |
#define | MBEDTLS_PK_SIGNATURE_MAX_SIZE 0 |
Maximum size of a signature made by mbedtls_pk_sign(). | |
#define | MBEDTLS_PK_DEBUG_MAX_ITEMS 3 |
Typedefs | |
typedef struct mbedtls_pk_rsassa_pss_options | mbedtls_pk_rsassa_pss_options |
Options for RSASSA-PSS signature verification. See mbedtls_rsa_rsassa_pss_verify_ext() | |
typedef struct mbedtls_pk_debug_item | mbedtls_pk_debug_item |
Item to send to the debug module. | |
typedef struct mbedtls_pk_info_t | mbedtls_pk_info_t |
Public key information and operations. | |
typedef struct mbedtls_pk_context | mbedtls_pk_context |
Public key container. | |
typedef void | mbedtls_pk_restart_ctx |
typedef int(* | mbedtls_pk_rsa_alt_decrypt_func) (void *ctx, int mode, size_t *olen, const unsigned char *input, unsigned char *output, size_t output_max_len) |
Types for RSA-alt abstraction. | |
typedef int(* | mbedtls_pk_rsa_alt_sign_func) (void *ctx, int(*f_rng) (void *, unsigned char *, size_t), void *p_rng, int mode, mbedtls_md_type_t md_alg, unsigned int hashlen, const unsigned char *hash, unsigned char *sig) |
typedef size_t(* | mbedtls_pk_rsa_alt_key_len_func) (void *ctx) |
Enumerations | |
enum | mbedtls_pk_type_t { MBEDTLS_PK_NONE =0 , MBEDTLS_PK_RSA , MBEDTLS_PK_ECKEY , MBEDTLS_PK_ECKEY_DH , MBEDTLS_PK_ECDSA , MBEDTLS_PK_RSA_ALT , MBEDTLS_PK_RSASSA_PSS , MBEDTLS_PK_OPAQUE } |
Public key types. More... | |
enum | mbedtls_pk_debug_type { MBEDTLS_PK_DEBUG_NONE = 0 , MBEDTLS_PK_DEBUG_MPI , MBEDTLS_PK_DEBUG_ECP } |
Types for interfacing with the debug module. More... | |
Functions | |
const mbedtls_pk_info_t * | mbedtls_pk_info_from_type (mbedtls_pk_type_t pk_type) |
Return information associated with the given PK type. | |
void | mbedtls_pk_init (mbedtls_pk_context *ctx) |
Initialize a mbedtls_pk_context (as NONE). | |
void | mbedtls_pk_free (mbedtls_pk_context *ctx) |
Free the components of a mbedtls_pk_context. | |
int | mbedtls_pk_setup (mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info) |
Initialize a PK context with the information given and allocates the type-specific PK subcontext. | |
int | mbedtls_pk_setup_rsa_alt (mbedtls_pk_context *ctx, void *key, mbedtls_pk_rsa_alt_decrypt_func decrypt_func, mbedtls_pk_rsa_alt_sign_func sign_func, mbedtls_pk_rsa_alt_key_len_func key_len_func) |
Initialize an RSA-alt context. | |
size_t | mbedtls_pk_get_bitlen (const mbedtls_pk_context *ctx) |
Get the size in bits of the underlying key. | |
static size_t | mbedtls_pk_get_len (const mbedtls_pk_context *ctx) |
Get the length in bytes of the underlying key. | |
int | mbedtls_pk_can_do (const mbedtls_pk_context *ctx, mbedtls_pk_type_t type) |
Tell if a context can do the operation given by type. | |
int | mbedtls_pk_verify (mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, const unsigned char *hash, size_t hash_len, const unsigned char *sig, size_t sig_len) |
Verify signature (including padding if relevant). | |
int | mbedtls_pk_verify_restartable (mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, const unsigned char *hash, size_t hash_len, const unsigned char *sig, size_t sig_len, mbedtls_pk_restart_ctx *rs_ctx) |
Restartable version of mbedtls_pk_verify() | |
int | mbedtls_pk_verify_ext (mbedtls_pk_type_t type, const void *options, mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, const unsigned char *hash, size_t hash_len, const unsigned char *sig, size_t sig_len) |
Verify signature, with options. (Includes verification of the padding depending on type.) | |
int | mbedtls_pk_sign (mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, const unsigned char *hash, size_t hash_len, unsigned char *sig, size_t *sig_len, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng) |
Make signature, including padding if relevant. | |
int | mbedtls_pk_sign_restartable (mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg, const unsigned char *hash, size_t hash_len, unsigned char *sig, size_t *sig_len, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng, mbedtls_pk_restart_ctx *rs_ctx) |
Restartable version of mbedtls_pk_sign() | |
int | mbedtls_pk_decrypt (mbedtls_pk_context *ctx, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen, size_t osize, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng) |
Decrypt message (including padding if relevant). | |
int | mbedtls_pk_encrypt (mbedtls_pk_context *ctx, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen, size_t osize, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng) |
Encrypt message (including padding if relevant). | |
int | mbedtls_pk_check_pair (const mbedtls_pk_context *pub, const mbedtls_pk_context *prv) |
Check if a public-private pair of keys matches. | |
int | mbedtls_pk_debug (const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items) |
Export debug information. | |
const char * | mbedtls_pk_get_name (const mbedtls_pk_context *ctx) |
Access the type name. | |
mbedtls_pk_type_t | mbedtls_pk_get_type (const mbedtls_pk_context *ctx) |
Get the key type. | |
static mbedtls_rsa_context * | mbedtls_pk_rsa (const mbedtls_pk_context pk) |
static mbedtls_ecp_keypair * | mbedtls_pk_ec (const mbedtls_pk_context pk) |
int | mbedtls_pk_parse_key (mbedtls_pk_context *ctx, const unsigned char *key, size_t keylen, const unsigned char *pwd, size_t pwdlen) |
Parse a private key in PEM or DER format. | |
int | mbedtls_pk_parse_public_key (mbedtls_pk_context *ctx, const unsigned char *key, size_t keylen) |
Parse a public key in PEM or DER format. | |
int | mbedtls_pk_parse_keyfile (mbedtls_pk_context *ctx, const char *path, const char *password) |
Load and parse a private key. | |
int | mbedtls_pk_parse_public_keyfile (mbedtls_pk_context *ctx, const char *path) |
Load and parse a public key. | |
int | mbedtls_pk_write_key_der (mbedtls_pk_context *ctx, unsigned char *buf, size_t size) |
Write a private key to a PKCS#1 or SEC1 DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer. | |
int | mbedtls_pk_write_pubkey_der (mbedtls_pk_context *ctx, unsigned char *buf, size_t size) |
Write a public key to a SubjectPublicKeyInfo DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer. | |
int | mbedtls_pk_write_pubkey_pem (mbedtls_pk_context *ctx, unsigned char *buf, size_t size) |
Write a public key to a PEM string. | |
int | mbedtls_pk_write_key_pem (mbedtls_pk_context *ctx, unsigned char *buf, size_t size) |
Write a private key to a PKCS#1 or SEC1 PEM string. | |
int | mbedtls_pk_parse_subpubkey (unsigned char **p, const unsigned char *end, mbedtls_pk_context *pk) |
Parse a SubjectPublicKeyInfo DER structure. | |
int | mbedtls_pk_write_pubkey (unsigned char **p, unsigned char *start, const mbedtls_pk_context *key) |
Write a subjectPublicKey to ASN.1 data Note: function works backwards in data buffer. | |
int | mbedtls_pk_load_file (const char *path, unsigned char **buf, size_t *n) |
Public Key abstraction layer.
Definition in file pk.h.
#define MBEDTLS_ERR_PK_ALLOC_FAILED -0x3F80 |
#define MBEDTLS_ERR_PK_BAD_INPUT_DATA -0x3E80 |
#define MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE -0x3980 |
#define MBEDTLS_ERR_PK_FILE_IO_ERROR -0x3E00 |
#define MBEDTLS_ERR_PK_HW_ACCEL_FAILED -0x3880 |
#define MBEDTLS_ERR_PK_INVALID_ALG -0x3A80 |
#define MBEDTLS_ERR_PK_INVALID_PUBKEY -0x3B00 |
#define MBEDTLS_ERR_PK_KEY_INVALID_FORMAT -0x3D00 |
#define MBEDTLS_ERR_PK_KEY_INVALID_VERSION -0x3D80 |
#define MBEDTLS_ERR_PK_PASSWORD_MISMATCH -0x3B80 |
#define MBEDTLS_ERR_PK_PASSWORD_REQUIRED -0x3C00 |
#define MBEDTLS_ERR_PK_SIG_LEN_MISMATCH -0x3900 |
#define MBEDTLS_ERR_PK_TYPE_MISMATCH -0x3F00 |
#define MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE -0x3A00 |
#define MBEDTLS_ERR_PK_UNKNOWN_PK_ALG -0x3C80 |
#define MBEDTLS_PK_DEBUG_MAX_ITEMS 3 |
#define MBEDTLS_PK_SIGNATURE_MAX_SIZE 0 |
Maximum size of a signature made by mbedtls_pk_sign().
typedef struct mbedtls_pk_context mbedtls_pk_context |
Public key container.
typedef struct mbedtls_pk_debug_item mbedtls_pk_debug_item |
Item to send to the debug module.
typedef struct mbedtls_pk_info_t mbedtls_pk_info_t |
typedef void mbedtls_pk_restart_ctx |
typedef int(* mbedtls_pk_rsa_alt_decrypt_func) (void *ctx, int mode, size_t *olen, const unsigned char *input, unsigned char *output, size_t output_max_len) |
typedef int(* mbedtls_pk_rsa_alt_sign_func) (void *ctx, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng, int mode, mbedtls_md_type_t md_alg, unsigned int hashlen, const unsigned char *hash, unsigned char *sig) |
typedef struct mbedtls_pk_rsassa_pss_options mbedtls_pk_rsassa_pss_options |
Options for RSASSA-PSS signature verification. See mbedtls_rsa_rsassa_pss_verify_ext()
enum mbedtls_pk_type_t |
int mbedtls_pk_can_do | ( | const mbedtls_pk_context * | ctx, |
mbedtls_pk_type_t | type ) |
Tell if a context can do the operation given by type.
ctx | The context to query. It must have been initialized. |
type | The desired type. |
int mbedtls_pk_check_pair | ( | const mbedtls_pk_context * | pub, |
const mbedtls_pk_context * | prv ) |
Check if a public-private pair of keys matches.
pub | Context holding a public key. |
prv | Context holding a private (and public) key. |
0
on success (keys were checked and match each other). int mbedtls_pk_debug | ( | const mbedtls_pk_context * | ctx, |
mbedtls_pk_debug_item * | items ) |
Export debug information.
ctx | The PK context to use. It must have been initialized. |
items | Place to write debug items |
int mbedtls_pk_decrypt | ( | mbedtls_pk_context * | ctx, |
const unsigned char * | input, | ||
size_t | ilen, | ||
unsigned char * | output, | ||
size_t * | olen, | ||
size_t | osize, | ||
int(* | f_rng )(void *, unsigned char *, size_t), | ||
void * | p_rng ) |
Decrypt message (including padding if relevant).
ctx | The PK context to use. It must have been set up with a private key. |
input | Input to decrypt |
ilen | Input size |
output | Decrypted output |
olen | Decrypted message length |
osize | Size of the output buffer |
f_rng | RNG function |
p_rng | RNG parameter |
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inlinestatic |
Quick access to an EC context inside a PK context.
Definition at line 657 of file pk.h.
References MBEDTLS_PK_ECDSA, MBEDTLS_PK_ECKEY, MBEDTLS_PK_ECKEY_DH, and mbedtls_pk_get_type().
int mbedtls_pk_encrypt | ( | mbedtls_pk_context * | ctx, |
const unsigned char * | input, | ||
size_t | ilen, | ||
unsigned char * | output, | ||
size_t * | olen, | ||
size_t | osize, | ||
int(* | f_rng )(void *, unsigned char *, size_t), | ||
void * | p_rng ) |
Encrypt message (including padding if relevant).
ctx | The PK context to use. It must have been set up. |
input | Message to encrypt |
ilen | Message size |
output | Encrypted output |
olen | Encrypted output length |
osize | Size of the output buffer |
f_rng | RNG function |
p_rng | RNG parameter |
void mbedtls_pk_free | ( | mbedtls_pk_context * | ctx | ) |
Free the components of a mbedtls_pk_context.
ctx | The context to clear. It must have been initialized. If this is NULL , this function does nothing. |
size_t mbedtls_pk_get_bitlen | ( | const mbedtls_pk_context * | ctx | ) |
Get the size in bits of the underlying key.
ctx | The context to query. It must have been initialized. |
Referenced by mbedtls_pk_get_len().
|
inlinestatic |
Get the length in bytes of the underlying key.
ctx | The context to query. It must have been initialized. |
Definition at line 355 of file pk.h.
References mbedtls_pk_get_bitlen().
const char * mbedtls_pk_get_name | ( | const mbedtls_pk_context * | ctx | ) |
Access the type name.
ctx | The PK context to use. It must have been initialized. |
mbedtls_pk_type_t mbedtls_pk_get_type | ( | const mbedtls_pk_context * | ctx | ) |
Get the key type.
ctx | The PK context to use. It must have been initialized. |
Referenced by mbedtls_pk_ec(), and mbedtls_pk_rsa().
const mbedtls_pk_info_t * mbedtls_pk_info_from_type | ( | mbedtls_pk_type_t | pk_type | ) |
Return information associated with the given PK type.
pk_type | PK type to search for. |
void mbedtls_pk_init | ( | mbedtls_pk_context * | ctx | ) |
Initialize a mbedtls_pk_context (as NONE).
ctx | The context to initialize. This must not be NULL . |
int mbedtls_pk_load_file | ( | const char * | path, |
unsigned char ** | buf, | ||
size_t * | n ) |
int mbedtls_pk_parse_key | ( | mbedtls_pk_context * | ctx, |
const unsigned char * | key, | ||
size_t | keylen, | ||
const unsigned char * | pwd, | ||
size_t | pwdlen ) |
Parse a private key in PEM or DER format.
ctx | The PK context to fill. It must have been initialized but not set up. |
key | Input buffer to parse. The buffer must contain the input exactly, with no extra trailing material. For PEM, the buffer must contain a null-terminated string. |
keylen | Size of key in bytes. For PEM data, this includes the terminating null byte, so keylen must be equal to strlen(key) + 1 . |
pwd | Optional password for decryption. Pass NULL if expecting a non-encrypted key. Pass a string of pwdlen bytes if expecting an encrypted key; a non-encrypted key will also be accepted. The empty password is not supported. |
pwdlen | Size of the password in bytes. Ignored if pwd is NULL . |
int mbedtls_pk_parse_keyfile | ( | mbedtls_pk_context * | ctx, |
const char * | path, | ||
const char * | password ) |
Load and parse a private key.
ctx | The PK context to fill. It must have been initialized but not set up. |
path | filename to read the private key from |
password | Optional password to decrypt the file. Pass NULL if expecting a non-encrypted key. Pass a null-terminated string if expecting an encrypted key; a non-encrypted key will also be accepted. The empty password is not supported. |
int mbedtls_pk_parse_public_key | ( | mbedtls_pk_context * | ctx, |
const unsigned char * | key, | ||
size_t | keylen ) |
Parse a public key in PEM or DER format.
ctx | The PK context to fill. It must have been initialized but not set up. |
key | Input buffer to parse. The buffer must contain the input exactly, with no extra trailing material. For PEM, the buffer must contain a null-terminated string. |
keylen | Size of key in bytes. For PEM data, this includes the terminating null byte, so keylen must be equal to strlen(key) + 1 . |
int mbedtls_pk_parse_public_keyfile | ( | mbedtls_pk_context * | ctx, |
const char * | path ) |
Load and parse a public key.
ctx | The PK context to fill. It must have been initialized but not set up. |
path | filename to read the public key from |
int mbedtls_pk_parse_subpubkey | ( | unsigned char ** | p, |
const unsigned char * | end, | ||
mbedtls_pk_context * | pk ) |
Parse a SubjectPublicKeyInfo DER structure.
p | the position in the ASN.1 data |
end | end of the buffer |
pk | The PK context to fill. It must have been initialized but not set up. |
|
inlinestatic |
Quick access to an RSA context inside a PK context.
Definition at line 634 of file pk.h.
References mbedtls_pk_get_type(), and MBEDTLS_PK_RSA.
int mbedtls_pk_setup | ( | mbedtls_pk_context * | ctx, |
const mbedtls_pk_info_t * | info ) |
Initialize a PK context with the information given and allocates the type-specific PK subcontext.
ctx | Context to initialize. It must not have been set up yet (type MBEDTLS_PK_NONE). |
info | Information to use |
mbedtls_pk_setup_rsa_alt()
instead. int mbedtls_pk_setup_rsa_alt | ( | mbedtls_pk_context * | ctx, |
void * | key, | ||
mbedtls_pk_rsa_alt_decrypt_func | decrypt_func, | ||
mbedtls_pk_rsa_alt_sign_func | sign_func, | ||
mbedtls_pk_rsa_alt_key_len_func | key_len_func ) |
Initialize an RSA-alt context.
ctx | Context to initialize. It must not have been set up yet (type MBEDTLS_PK_NONE). |
key | RSA key pointer |
decrypt_func | Decryption function |
sign_func | Signing function |
key_len_func | Function returning key length in bytes |
mbedtls_pk_setup()
for RSA-alt. int mbedtls_pk_sign | ( | mbedtls_pk_context * | ctx, |
mbedtls_md_type_t | md_alg, | ||
const unsigned char * | hash, | ||
size_t | hash_len, | ||
unsigned char * | sig, | ||
size_t * | sig_len, | ||
int(* | f_rng )(void *, unsigned char *, size_t), | ||
void * | p_rng ) |
Make signature, including padding if relevant.
ctx | The PK context to use. It must have been set up with a private key. |
md_alg | Hash algorithm used (see notes) |
hash | Hash of the message to sign |
hash_len | Hash length or 0 (see notes) |
sig | Place to write the signature. It must have enough room for the signature. MBEDTLS_PK_SIGNATURE_MAX_SIZE is always enough. You may use a smaller buffer if it is large enough given the key type. |
sig_len | On successful return, the number of bytes written to sig . |
f_rng | RNG function |
p_rng | RNG parameter |
int mbedtls_pk_sign_restartable | ( | mbedtls_pk_context * | ctx, |
mbedtls_md_type_t | md_alg, | ||
const unsigned char * | hash, | ||
size_t | hash_len, | ||
unsigned char * | sig, | ||
size_t * | sig_len, | ||
int(* | f_rng )(void *, unsigned char *, size_t), | ||
void * | p_rng, | ||
mbedtls_pk_restart_ctx * | rs_ctx ) |
Restartable version of mbedtls_pk_sign()
mbedtls_pk_sign()
, but can return early and restart according to the limit set with mbedtls_ecp_set_max_ops()
to reduce blocking for ECC operations. For RSA, same as mbedtls_pk_sign()
.ctx | The PK context to use. It must have been set up with a private key. |
md_alg | Hash algorithm used (see notes for mbedtls_pk_sign()) |
hash | Hash of the message to sign |
hash_len | Hash length or 0 (see notes for mbedtls_pk_sign()) |
sig | Place to write the signature. It must have enough room for the signature. MBEDTLS_PK_SIGNATURE_MAX_SIZE is always enough. You may use a smaller buffer if it is large enough given the key type. |
sig_len | On successful return, the number of bytes written to sig . |
f_rng | RNG function |
p_rng | RNG parameter |
rs_ctx | Restart context (NULL to disable restart) |
mbedtls_pk_sign()
. mbedtls_ecp_set_max_ops()
. int mbedtls_pk_verify | ( | mbedtls_pk_context * | ctx, |
mbedtls_md_type_t | md_alg, | ||
const unsigned char * | hash, | ||
size_t | hash_len, | ||
const unsigned char * | sig, | ||
size_t | sig_len ) |
Verify signature (including padding if relevant).
ctx | The PK context to use. It must have been set up. |
md_alg | Hash algorithm used (see notes) |
hash | Hash of the message to sign |
hash_len | Hash length or 0 (see notes) |
sig | Signature to verify |
sig_len | Signature length |
sig
but its length is less than sig_len
, or a specific error code.mbedtls_pk_verify_ext( MBEDTLS_PK_RSASSA_PSS, ... )
to verify RSASSA_PSS signatures.int mbedtls_pk_verify_ext | ( | mbedtls_pk_type_t | type, |
const void * | options, | ||
mbedtls_pk_context * | ctx, | ||
mbedtls_md_type_t | md_alg, | ||
const unsigned char * | hash, | ||
size_t | hash_len, | ||
const unsigned char * | sig, | ||
size_t | sig_len ) |
Verify signature, with options. (Includes verification of the padding depending on type.)
type | Signature type (inc. possible padding type) to verify |
options | Pointer to type-specific options, or NULL |
ctx | The PK context to use. It must have been set up. |
md_alg | Hash algorithm used (see notes) |
hash | Hash of the message to sign |
hash_len | Hash length or 0 (see notes) |
sig | Signature to verify |
sig_len | Signature length |
sig
but its length is less than sig_len
, or a specific error code.int mbedtls_pk_verify_restartable | ( | mbedtls_pk_context * | ctx, |
mbedtls_md_type_t | md_alg, | ||
const unsigned char * | hash, | ||
size_t | hash_len, | ||
const unsigned char * | sig, | ||
size_t | sig_len, | ||
mbedtls_pk_restart_ctx * | rs_ctx ) |
Restartable version of mbedtls_pk_verify()
mbedtls_pk_verify()
, but can return early and restart according to the limit set with mbedtls_ecp_set_max_ops()
to reduce blocking for ECC operations. For RSA, same as mbedtls_pk_verify()
.ctx | The PK context to use. It must have been set up. |
md_alg | Hash algorithm used (see notes) |
hash | Hash of the message to sign |
hash_len | Hash length or 0 (see notes) |
sig | Signature to verify |
sig_len | Signature length |
rs_ctx | Restart context (NULL to disable restart) |
mbedtls_pk_verify()
, or mbedtls_ecp_set_max_ops()
. int mbedtls_pk_write_key_der | ( | mbedtls_pk_context * | ctx, |
unsigned char * | buf, | ||
size_t | size ) |
Write a private key to a PKCS#1 or SEC1 DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer.
ctx | PK context which must contain a valid private key. |
buf | buffer to write to |
size | size of the buffer |
int mbedtls_pk_write_key_pem | ( | mbedtls_pk_context * | ctx, |
unsigned char * | buf, | ||
size_t | size ) |
Write a private key to a PKCS#1 or SEC1 PEM string.
ctx | PK context which must contain a valid private key. |
buf | Buffer to write to. The output includes a terminating null byte. |
size | Size of the buffer in bytes. |
int mbedtls_pk_write_pubkey | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const mbedtls_pk_context * | key ) |
Write a subjectPublicKey to ASN.1 data Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
key | PK context which must contain a valid public or private key. |
int mbedtls_pk_write_pubkey_der | ( | mbedtls_pk_context * | ctx, |
unsigned char * | buf, | ||
size_t | size ) |
Write a public key to a SubjectPublicKeyInfo DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer.
ctx | PK context which must contain a valid public or private key. |
buf | buffer to write to |
size | size of the buffer |
int mbedtls_pk_write_pubkey_pem | ( | mbedtls_pk_context * | ctx, |
unsigned char * | buf, | ||
size_t | size ) |
Write a public key to a PEM string.
ctx | PK context which must contain a valid public or private key. |
buf | Buffer to write to. The output includes a terminating null byte. |
size | Size of the buffer in bytes. |