473     unsigned char padding_len, bad = 0;  in get_pkcs_padding()  local
482     bad |= padding_len > input_len;  in get_pkcs_padding()
483     bad |= padding_len == 0;  in get_pkcs_padding()
489         bad |= ( input[i] ^ padding_len ) * ( i >= pad_idx );  in get_pkcs_padding()
491     return( MBEDTLS_ERR_CIPHER_INVALID_PADDING * ( bad != 0 ) );  in get_pkcs_padding()
514     unsigned char done = 0, prev_done, bad;  in get_one_and_zeros_padding()  local
519     bad = 0xFF;  in get_one_and_zeros_padding()
526         bad &= ( input[i-1] ^ 0x80 ) | ( done == prev_done );  in get_one_and_zeros_padding()
529     return( MBEDTLS_ERR_CIPHER_INVALID_PADDING * ( bad != 0 ) );  in get_one_and_zeros_padding()
553     unsigned char padding_len, bad = 0;  in get_zeros_and_len_padding()  local
562     bad |= padding_len > input_len;  in get_zeros_and_len_padding()
563     bad |= padding_len == 0;  in get_zeros_and_len_padding()
568         bad |= input[i] * ( i >= pad_idx );  in get_zeros_and_len_padding()
570     return( MBEDTLS_ERR_CIPHER_INVALID_PADDING * ( bad != 0 ) );  in get_zeros_and_len_padding()