3,442 reputation
628
bio website
location Netherlands
age 40
visits member for 2 years, 7 months
seen 8 hours ago

Java and security expert with over 10 years of experience with the language and with the practical application of cryptographic protocols - including the design of protocols within international standardization bodies. Creator of a heavily used common criteria certified product. Over 30 years of experience with computers. Likes kids, cats, reading, movies and several sports.


21h
revised Spoofing protocol nonce
fixed my name, made it link to answer, which is now way way WAY down :)
2d
revised KDF based on HMAC-SHA-256
added 134 characters in body
Jul
20
revised Spoofing protocol nonce
made it more clear according to comments below
Jul
20
revised Is it safe to seed a random number generator from system time?
changed text according to admission of author in 3rd comment
Jul
20
revised Video encryption at server, decryption on mobile using AES
deleted 138 characters in body
Jul
20
revised Spoofing protocol nonce
added 98 characters in body
Jul
20
revised Spoofing protocol nonce
initial formatting; edited tags; edited tags
Jul
20
revised Decrypting an encrypted text out of order
removed a lot of text not needed for the question, removed cap. of Encryption from title
Jul
20
revised KDF based on HMAC-SHA-256
deleted 352 characters in body
Jul
20
revised Predicting PRNG given some of its previous output
added 82 characters in body
Jul
20
revised Process of dividing 168bit key into 56bit keys in TripleDES
formatted according to FIPS 46-3, mentioned TDEA as name, removed links to blogs about language implementations
Jul
20
revised Process of dividing 168bit key into 56bit keys in TripleDES
formatted according to FIPS 46-3, mentioned TDEA as name, removed links to blogs about language implementations
Jul
16
revised Decrypting an encrypted text out of order
edited body
Jul
16
revised Decrypting an encrypted text out of order
forgot one "commutative" -> associative. I'm used to the Dutch definitions :)
Jul
16
revised Decrypting an encrypted text out of order
forgot one "commutative" -> associative. I'm used to the Dutch definitions :)
Jul
14
revised Could I use an hashing function for Symmetric encryption?
deleted 4 characters in body
Jul
14
revised Could I use an hashing function for Symmetric encryption?
added 268 characters in body
Jul
14
revised Does CCA security imply authenticated encryption?
will -> should, I wish every implementation would do that, but alas...
Jul
13
revised Effective security of block cipher – equal the key size, or half the key size?
deleted 4 characters in body
Jul
13
revised Effective security of block cipher – equal the key size, or half the key size?
k -> k -1 ... averaging here