Topic: How to generate key pair for encryption/decryption AES-128 in a simple way (Read 1094 times)
March 09, 2014, 10:09:20 AM
I found a solution, topic is closed.
March 05, 2014, 04:57:44 AM
NIST defines a set of example vectors in the AES standard.
http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
page 35:
The key used for the AES-128 encryption are:
000102030405060708090a0b0c0d0e0f
Later in the algorithm (in round 10) is the decryption key derived:
13111d7fe3944a17f307a78b4d2b30c5
This key is of cause needed to decrypt the message.
How do you in a simple way generate this key set?
Typically (in an application) the user will input a password, which will be converted into the encryption key.
How do decryption application generate the decryption key based on the encryption key?
In other words: if you know the key 000102030405060708090a0b0c0d0e0f, how do you calculate the key 13111d7fe3944a17f307a78b4d2b30c5.
Any help is much appropriated!
(this project is for academic use)
http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
page 35:
The key used for the AES-128 encryption are:
000102030405060708090a0b0c0d0e0f
Later in the algorithm (in round 10) is the decryption key derived:
13111d7fe3944a17f307a78b4d2b30c5
This key is of cause needed to decrypt the message.
How do you in a simple way generate this key set?
Typically (in an application) the user will input a password, which will be converted into the encryption key.
How do decryption application generate the decryption key based on the encryption key?
In other words: if you know the key 000102030405060708090a0b0c0d0e0f, how do you calculate the key 13111d7fe3944a17f307a78b4d2b30c5.
Any help is much appropriated!
(this project is for academic use)
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