crypto_misc.h File Reference

#include "crypto.h"
#include "bigint.h"

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Classes
struct	_x509_ctx

Macros
#define	X509_OK   0
#define	X509_NOT_OK   -1
#define	X509_VFY_ERROR_NO_TRUSTED_CERT   -2
#define	X509_VFY_ERROR_BAD_SIGNATURE   -3
#define	X509_VFY_ERROR_NOT_YET_VALID   -4
#define	X509_VFY_ERROR_EXPIRED   -5
#define	X509_VFY_ERROR_SELF_SIGNED   -6
#define	X509_VFY_ERROR_INVALID_CHAIN   -7
#define	X509_VFY_ERROR_UNSUPPORTED_DIGEST   -8
#define	X509_INVALID_PRIV_KEY   -9
#define	X509_NUM_DN_TYPES   4
#define	X509_COMMON_NAME   0
#define	X509_ORGANIZATION   1
#define	X509_ORGANIZATIONAL_UNIT   2
#define	X509_GENERIC   3
#define	ASN1_INTEGER   0x02
#define	ASN1_BIT_STRING   0x03
#define	ASN1_OCTET_STRING   0x04
#define	ASN1_NULL   0x05
#define	ASN1_PRINTABLE_STR2   0x0C
#define	ASN1_OID   0x06
#define	ASN1_UNIVERSAL_STR   0x1C /* GBG */
#define	ASN1_PRINTABLE_STR   0x13
#define	ASN1_TELETEX_STR   0x14
#define	ASN1_IA5_STR   0x16
#define	ASN1_UTC_TIME   0x17
#define	ASN1_GENERALIZED_TIME   0x18 /* GBG */
#define	ASN1_UNICODE_STR   0x1e
#define	ASN1_SEQUENCE   0x30
#define	ASN1_CONTEXT_DNSNAME   0x82
#define	ASN1_SET   0x31
#define	ASN1_V3_DATA   0xa3
#define	ASN1_IMPLICIT_TAG   0x80
#define	ASN1_CONTEXT_DNSNAME   0x82
#define	ASN1_EXPLICIT_TAG   0xa0
#define	ASN1_V3_DATA   0xa3
#define	SIG_TYPE_MD2   0x02
#define	SIG_TYPE_MD5   0x04
#define	SIG_TYPE_SHA1   0x05
#define	SIG_TYPE_SHA256   0x0B /* GBG */
#define	SALT_SIZE   8

Typedefs
typedef struct _x509_ctx	X509_CTX
typedef void(*	crypt_func) (void *, const uint8_t *, uint8_t *, int)
typedef void(*	hmac_func) (const uint8_t *msg, int length, const uint8_t *key, int key_len, uint8_t *digest)

Functions
int	x509_new (const uint8_t *cert, int *len, X509_CTX **ctx)
	Construct a new x509 object. More...
void	x509_free (X509_CTX *x509_ctx)
	Free an X.509 object's resources.
int	get_asn1_length (const uint8_t *buf, int *offset)
int	asn1_get_private_key (const uint8_t *buf, int len, RSA_CTX **rsa_ctx)
	Get all the RSA private key specifics from an ASN.1 encoded file.
int	asn1_next_obj (const uint8_t *buf, int *offset, int obj_type)
	Skip the ASN1.1 object type and its length. More...
int	asn1_skip_obj (const uint8_t *buf, int *offset, int obj_type)
	Skip over an ASN.1 object type completely. More...
int	asn1_get_int (const uint8_t *buf, int *offset, uint8_t **object)
	Read an integer value for ASN.1 data Note: This function allocates memory which must be freed by the user.
int	asn1_version (const uint8_t *cert, int *offset, X509_CTX *x509_ctx)
	Get the version type of a certificate (which we don't actually care about)
int	asn1_validity (const uint8_t *cert, int *offset, X509_CTX *x509_ctx)
	Retrieve the notbefore and notafter certificate times.
int	asn1_name (const uint8_t *cert, int *offset, char *dn[])
	Get the subject name (or the issuer) of a certificate.
int	asn1_public_key (const uint8_t *cert, int *offset, X509_CTX *x509_ctx)
	Read the modulus and public exponent of a certificate.
int	asn1_signature_type (const uint8_t *cert, int *offset, X509_CTX *x509_ctx)
	Read the signature type of the certificate. More...
int	get_file (const char *filename, uint8_t **buf)
EXP_FUNC void STDCALL	print_blob (const char *format, const uint8_t *data, int size,...)
EXP_FUNC int STDCALL	base64_decode (const char *in, int len, uint8_t *out, int *outlen)

Variables
const char *const	unsupported_str

Function Documentation

asn1_next_obj()

int asn1_next_obj	(	const uint8_t *	buf,
		int *	offset,
		int	obj_type
	)

Skip the ASN1.1 object type and its length.

Get ready to read the object's data.

asn1_signature_type()

int asn1_signature_type	(	const uint8_t *	cert,
		int *	offset,
		X509_CTX *	x509_ctx
	)

Read the signature type of the certificate.

We only support RSA-MD5 and RSA-SHA1 signature types.

asn1_skip_obj()

int asn1_skip_obj	(	const uint8_t *	buf,
		int *	offset,
		int	obj_type
	)

Skip over an ASN.1 object type completely.

Get ready to read the next object.

x509_new()

int x509_new	(	const uint8_t *	cert,
		int *	len,
		X509_CTX **	ctx
	)

Construct a new x509 object.

Returns

0 if ok. < 0 if there was a problem.