check_signature    37 builtin/verify-tag.c 	ret = check_signature(buf, len, buf + len, size - len, &sigc);
check_signature  1257 commit.c       	ret = check_signature(payload.buf, payload.len, signature.buf,
check_signature    33 gpg-interface.h extern int check_signature(const char *payload, size_t plen,