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Some more EC pubkey parsing refactoring

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Fix a bug in pk_rsa() and pk_ec() along the way
This commit is contained in:
Manuel Pégourié-Gonnard 2013-07-11 13:59:02 +02:00 • committed by Paul Bakker
parent 1c808a011c
commit a2d4e644ac
5 changed files with 54 additions and 75 deletions
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13
include/polarssl/asn1.h
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@ -212,6 +212,19 @@ int asn1_get_int( unsigned char **p,
int asn1_get_bitstring( unsigned char **p, const unsigned char *end,
asn1_bitstring *bs);
/**
* Retrieve a bitstring ASN.1 tag without unused bits and its value.
* Updates the pointer to the beginning of the bit/octet string.
*
* \param p The position in the ASN.1 data
* \param end End of data
* \param len Length of the actual bit/octect string in bytes
*
* \return 0 if successful or a specific ASN.1 error code.
*/
int asn1_get_bitstring_null( unsigned char **p, const unsigned char *end,
size_t *len );
/**
* Parses and splits an ASN.1 "SEQUENCE OF <tag>"
* Updated the pointer to immediately behind the full sequence tag.

4
include/polarssl/pk.h
View file

@ -43,7 +43,7 @@
* \warning You must make sure the PK context actually holds an RSA context
* before using this macro!
*/
#define pk_rsa( pk ) ( (rsa_context *) pk.data )
#define pk_rsa( pk ) ( (rsa_context *) (pk).data )
#endif
#if defined(POLARSSL_ECP_C)
@ -53,7 +53,7 @@
* \warning You must make sure the PK context actually holds an EC context
* before using this macro!
*/
#define pk_ec( pk ) ( (ecp_keypair *) pk.data )
#define pk_ec( pk ) ( (ecp_keypair *) (pk).data )
#endif