deslength

2017年9月15日—DEShasa56-bitkeyin8-bytes.Thelengthoftheoutputdependsonthelengthoftheinput,modeandpadding,notthekey.,InJanuary1999,distributed.netandtheElectronicFrontierFoundationcollaboratedtopubliclybreakaDESkeyin22hoursand15minutes(see§Chronology).,DESdata-encryptingkeyscanbesingle-,double-,ortriple-length.Asingle-lengthDESkeyisa56-bitpieceofdatathatisnormallyretainedin8bytesof ...,Triple-le...

參考資訊如下
What could be the keylength of a DES encryption?

2017年9月15日 — DES has a 56-bit key in 8-bytes. The length of the output depends on the length of the input, mode and padding, not the key.

Data Encryption Standard

In January 1999, distributed.net and the Electronic Frontier Foundation collaborated to publicly break a DES key in 22 hours and 15 minutes (see § Chronology).

The Data Encryption Algorithm and ...

DES data-encrypting keys can be single-, double-, or triple-length. A single-length DES key is a 56-bit piece of data that is normally retained in 8 bytes of ...

DES key types

Triple-length keys are 192-bits in length. Additional triple-length DES key support is introduced by APAR OA55184 for ICSF FMID HCR77C1 and later releases and ...

What is the effective key size for DES (the Data Encryption ...

2021年6月25日 — the DES key is 56 bits, AES key is 128 or 192 or 256. More possibilities of exhaustive search attacks. DES has 64 bits ...

Data Encryption Standard - an overview

What Is DES (Data Encryption Standard)? DES Algorithm ...

2023年8月1日 — Depending upon the size of the key being used, the number of rounds varies. For example, a 128-bit key requires 10 rounds, a 192-bit key ...

Data Encryption Standard (DES)

DES uses a 64-bit key, but because eight of those bits are used for parity checks, the effective key length is only 56 bits. The encryption algorithm generates ...