Data Encryption Standard (DES) is a symmetrical encryption algorithm.

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How to calculate cryptographic checksum using 3DES-outer-CBC mode

I want to calculate a cryptographic checksum using 3DES in outer CBC mode. As I know (and tried Googling also ) 3DES is an encryption algorithm, I'm not getting getting any information about how it ...
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cracking krb5 passwords (des3-hmac-sha1 and des-cbc-crc )

I'm trying to audit kerberos passwords. The available formats are des3-hmac-sha1 and des-cbc-crc but I cannot find a possibility/a tool to crack them. For other hash-types I used John the Ripper, but ...
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Key Hierarchy and key Encryption

If i have two 56-bit DES keys, and I use these two key to encrypt a 256-bit AES key. Like this: K_AT encrypts K_BT and K_BT encrypts K What is the effective security of key K? Is it 2 X 56 Bits?
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Triple DES Initialization Vector: Do I use 3 different IVs?

I want to implement a triple DES CBC algorithm but I do not know whether or not I should use a different IV for every encryption-decryption or the same. I suspect the same IV should be used in all 3 ...