Decodes a DER encoded ECDSA signature (note: this function changes *pp (*pp += len)).
pointer to ECDSA_SIG pointer (may be null)
memory buffer with the DER encoded signature
length of the buffer
pointer to the decoded ECDSA_SIG structure (or null)
See Implementation
Decodes a DER encoded ECDSA signature (note: this function changes *pp (*pp += len)).