pgpfan:mdc
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| pgpfan:mdc [2023/12/07 18:57] – Better throw in the relevant paper b.walzer | pgpfan:mdc [2023/12/11 12:56] – [A Less Intuitive, More Technical Explanation] Structure b.walzer | ||
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| The modification detection code (MDC) is a SHA1 hash of the random data prefix block and the plaintext message. The inclusion of the random data makes the | The modification detection code (MDC) is a SHA1 hash of the random data prefix block and the plaintext message. The inclusion of the random data makes the | ||
| - | MDC unpredictable and prevents known plaintext based modification. | + | MDC unpredictable and prevents known plaintext based modification. It has been argued that making the hash unavailable to the attacker in this way is a requirement for a secure construct of this type(([[https:// |
| OCFB-MDC is immune to the classic attacks against hash then encrypt that involve getting the victim to encrypt an attack message that is later truncated to | OCFB-MDC is immune to the classic attacks against hash then encrypt that involve getting the victim to encrypt an attack message that is later truncated to | ||
pgpfan/mdc.txt · Last modified: 2023/12/11 13:30 by b.walzer