pub unsafe extern "C" fn EVP_SIGNATURE_fetch(
ctx: *mut OSSL_LIB_CTX,
algorithm: *const c_char,
properties: *const c_char,
) -> *mut EVP_SIGNATUREpub unsafe extern "C" fn EVP_SIGNATURE_fetch(
ctx: *mut OSSL_LIB_CTX,
algorithm: *const c_char,
properties: *const c_char,
) -> *mut EVP_SIGNATURE