3deskeylength

,2015年3月27日—Sosometimesthe(triple)DESkeylengthsarereferredtoas56bit,112bitor168bitsinsteadof64,128or192bitsrespectively.Usually ...,Ingeneral,TripleDESwiththreeindependentkeys(keyingoption1)hasakeylengthof168bits(three56-bitDESkeys),butduetothemeet-in-the-middle ...,2011年4月12日—A3DESkeyhaslength128or192bits.Notethat,internally,thealgorithmwilluseonly112(respectively168)bitsoutofthose128 ....

參考資訊如下
CS 5430: Symmetric-key Encryption

encryption

2015年3月27日 — So sometimes the (triple) DES key lengths are referred to as 56 bit, 112 bit or 168 bits instead of 64, 128 or 192 bits respectively. Usually ...

Triple DES

In general, Triple DES with three independent keys (keying option 1) has a key length of 168 bits (three 56-bit DES keys), but due to the meet-in-the-middle ...

3DES Key Size Matter in C#.Net

2011年4月12日 — A 3DES key has length 128 or 192 bits. Note that, internally, the algorithm will use only 112 (respectively 168) bits out of those 128 ...

What is 3DES encryption and how does DES work?

2023年8月31日 — Keying option one involves three different 56-bit keys, which gives it a total key length of 168 bits. The effective length is reduced ...

libica

The cipher block size for 3DES is 8 bytes. 3DES is known in two variants: a two key variant and a three key variant. This library implements only the three key ...

What block size is used by the 3DES encryption algorithm?

2020年9月12日 — The block size used by the 3DES encryption algorithm is 64 bits. Continue reading.

What is Triple DES and why is it being disallowed?

2023年1月9日 — When Triple DES is used with three independent keys, sometimes referred to as 3TDEA, it has a key length of 168 bits (3 x 56-bit DES keys = 168 ...

3DES

常用名稱為3TDEA或「三倍長度金鑰」（triple-length keys）; 金鑰選項1的強度最高，擁有3 x 56 = 168個獨立的金鑰位。在NIST SP 800-57與SP 800-78-2中 ...

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