gnutls_x509_crq_get_pk_algorithm - API function
int gnutls_x509_crq_get_pk_algorithm(gnutls_x509_crq_t crq, unsigned int * bits);
This function will return the public key algorithm of a PKCS10 certificate request.
If bits is non-NULL, it should have enough size to hold the parameters size in bits. For RSA the bits returned is the modulus. For DSA the bits returned are of the public exponent.
a member of the gnutls_pk_algorithm_t enumeration on success, or a negative error code on error.
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