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May
9
comment Key derivation design to avoid key leaks
@SOJPM, but there is a PRP switching lemma, and AES satifies that. So it is also a PRF.
May
9
comment Key derivation design to avoid key leaks
@SOJPM, yes, you are right.
May
9
comment Key derivation design to avoid key leaks
@SOJPM, I dont think it matters. Both are PRF.
May
9
comment Key derivation design to avoid key leaks
@SOJPM, I remove the standard construction request. I am familiar with those. I just want to know if this construction have problems. This is for KDF.
May
9
revised Key derivation design to avoid key leaks
deleted 51 characters in body
May
7
comment Key derivation design to avoid key leaks
@fgrieu, thank you for the comment. I have added the threat model and make derived_key_2 as public value for the attacker.
May
7
revised Key derivation design to avoid key leaks
added 236 characters in body
May
7
asked Key derivation design to avoid key leaks
Feb
16
asked Equivalent key size between HMAC and AES?
Feb
15
accepted Requirement for the exponent generation during DH protocol
Feb
15
asked Requirement for the exponent generation during DH protocol
Jan
20
revised Two questions on EMSA-PKCS1-v1_5
edited title
Jan
19
asked Two questions on EMSA-PKCS1-v1_5
Dec
8
awarded  Commentator
Oct
14
asked How to calculate the entropy of passwords?
Jun
12
awarded  Scholar
Jun
12
accepted Can 64-bit “PRINCEcore” practically be brute forced?
May
2
revised Can 64-bit “PRINCEcore” practically be brute forced?
added 163 characters in body
May
2
comment Can 64-bit “PRINCEcore” practically be brute forced?
@e-sushi, thank you for the comment. Now I am getting familiar with the terminology here ;). Yes, I came across those references and there is one more here. I have not seen any attacks on PRINCEcore that is significantly faster than brute force. What is the effort required to do a brute force attack on PRINCEcore? I have seen people using rainbow tables to break DES(56-bit key) pretty fast.
May
2
awarded  Editor