CRYPT_RSA_PrivateKeyDecode Function

C

int CRYPT_RSA_PrivateKeyDecode(
    CRYPT_RSA_CTX* rsa, 
    const unsigned char* in, 
    unsigned int inSz
);

Description

This function builds a private key from a DER-formatted certificate. DER stands for Distinguished Encoding Rules.

Preconditions

The context must have been initialized with a call to CRYPT_RSA_Initialize.

Parameters

Parameters	Description
rsa	Pointer to context which saves state between calls.
in	Pointer to buffer containing the certificate to process to extract the private key.
inSz	Size of the input data in bytes.

Returns

BAD_FUNC_ARG - An invalid pointer was passed to the function.
0 - An invalid pointer was not passed to the function.

Remarks

None.

Example

CRYPT_RSA_CTX mcRsa;
int           ret;
unsigned int  keySz = (unsigned int)sizeof(client_key_der_1024);

ret = CRYPT_RSA_Initialize(&mcRsa);
ret = CRYPT_RSA_PrivateKeyDecode(&mcRsa, client_key_der_1024, keySz);