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| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 11 months |
| seen | May 9 at 17:18 | |
| stats | profile views | 5 |
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Jun 13 |
answered | RSA Proof of Correctness |
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Jun 13 |
revised |
Difference between encrypting something and hashing something added 399 characters in body |
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Jun 13 |
answered | Difference between encrypting something and hashing something |
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Jun 13 |
comment |
RSA Proof of Correctness Could you try to explain exactly what you do understand and what you don't understand? Do you understand Fermat's little theorem? What about the Chinese remainder theorem? |
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Jun 12 |
comment |
Looking for cipher that uses one ciphertext @Globalnomad: Ok, I understand now. It sounds like David's answer is what you need then. (I actually don't know enough about this...). |
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Jun 12 |
comment |
Looking for cipher that uses one ciphertext So just to make sure I understand. You want the teacher to just encrypt say one file, giving you one ciphertext. (so one plaintext and *on*e ciphertext) And the you want to give the recipients each a different password, so that each password decrypts the message. But you want the result of the decryption to be different depending on who decrypted the message? So the teacher does not have different messages that he/she encrypts differently? |
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Jun 11 |
awarded | Commentator |
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Jun 11 |
revised |
Hash function in PBKDF2 added 82 characters in body |
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Jun 11 |
comment |
Hash function in PBKDF2 Thanks for the answer. Yes I am just doing this for fun. I don't actually need to encrypt anything. But I would like something that wasn't trivial and something that doesn't show obvious signs of pattern. I read more about the hash functions, and I see that I was wrong... |
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Jun 11 |
comment |
Looking for cipher that uses one ciphertext (I am also new to cryptography). Have you looked at RSA? Here the recipients have their one key that John can use to encrypt the message with. Thereby each will receive a message that "looks" different. Only the recipient will be able to decrypt the message. |
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Jun 10 |
asked | Hash function in PBKDF2 |
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Jun 10 |
accepted | Padding for the TEA |
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Jun 10 |
comment |
Padding for the TEA Ok, so I think that I understand how to do the plaintext padding. If I want to use this PBKDF2, how exactly would I do that? I see that it requires salt. How, for example does one produce that? (This might be an entirely new question?) |
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Jun 9 |
comment |
Padding for the TEA @ChrisSmith: I missed that... thanks for the suggestion! |
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Jun 9 |
comment |
Padding for the TEA @ChrisSmith: Yes, I am doing this more as an exercise in the algorithm. I will try to do both modes. So, I can't find anything about the PKCS5. I found something about PKSCS7 on Wikipedia: en.wikipedia.org/wiki/Padding_%28cryptography%29#Bit_padding |
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Jun 9 |
comment |
Padding for the TEA @ChrisSmith: I think I am using the ECB mode |
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Jun 9 |
asked | Padding for the TEA |
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Jun 6 |
awarded | Citizen Patrol |
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Jun 6 |
accepted | Are there any simple and yet secure encryption algorithms? |
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Jun 5 |
awarded | Scholar |
