(PECL rnp >= 0.1.1)
rnp_decrypt — Decrypt PGP message
Private keys used for decryption should be loaded into the FFI object before calling this function. If password encryption was used, then password provider should be set by calling rnp_ffi_set_pass_provider().
ffiThe FFI object returned by rnp_ffi_create.
inputEncrypted message.
Decrypted message on success失敗した場合に false を返します.