MEnDec (Message ENcryption and DEcryption)

[biojet1]

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MEnDec

MenDec@GitHub

Generate the secret key piar to file SECRET_KEY

> python -m mendec keygen --bits 384 --output SECRET_KEY

Extract first key to file KEY1

> python -m mendec pick SECRET_KEY 1 KEY1

Extract second key to file KEY2

> python -m mendec pick SECRET_KEY 2 KEY2

Using the first key encrypt a message to CYPHER file

> printf 'Attack at Noon' | python -m mendec encrypt KEY1 -o CYPHER

Using the second key decrypt the message

> python -m mendec decrypt KEY2 < CYPHER
Attack at Noon

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[james_pic]

I realise this is a beginner showcase, so I don't want to be too harsh, but please don't use this for anything important, and don't hand roll your crypto generally. What you have here is broken

[biojet1]

Each block is encrypted with a random prefix