5,050 reputation
1734
bio website
location Netherlands
age 40
visits member for 2 years, 11 months
seen 4 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.


16h
revised Encrypting twice with same key gives back plain text
added 202 characters in body
16h
revised Encrypting twice with same key gives back plain text
added 37 characters in body
17h
revised Encrypting twice with same key gives back plain text
deleted 2 characters in body
Oct
26
revised Is it safe to salt a MAC?
edited title
Oct
26
revised Frequency analysis of Vigenere Cipher
edited tags; edited title
Oct
26
revised Is it safe to salt a MAC?
tried to clear up what the question is about...
Oct
25
revised Use case of RSA CRT
added 175 characters in body
Oct
25
revised What do you call one time pad where pseudo-random numbers are used?
added 12 characters in body; edited title
Oct
24
revised Secure way to derive separate encryption and MAC keys from a single master key?
deleted 3 characters in body
Oct
24
revised Does the size of a SSH ECDSA key determine the hash algorithm?
added 84 characters in body
Oct
24
revised Does the size of a SSH ECDSA key determine the hash algorithm?
edited title
Oct
24
revised Security of KDF1 and KDF2 (hash based KDF's)
added 1 character in body
Oct
24
revised What can be learned from the ciphertext of LibSodium's crypto_box_detached()?
added 76 characters in body
Oct
24
revised Secure way to derive separate encryption and MAC keys from a single master key?
toned down the "are secure" into "should be secure", created an extended answer
Oct
24
revised Security of KDF1 and KDF2 (hash based KDF's)
deleted 73 characters in body; edited tags
Oct
24
revised Secure way to derive separate encryption and MAC keys from a single master key?
toned down the "are secure" into "should be secure", created an extended answer
Oct
22
revised Does a stream cipher require a KDF when it's key is variable length?
deleted 68 characters in body
Oct
22
revised Does google's Crypto.JS AES encryption use PBKDF2 as default?
added 144 characters in body
Oct
16
revised Comparing Files: Is it better to use multiple hash algorithms or just one?
added 72 characters in body
Oct
16
revised AES: Guess Password using the unencrypted text?
added 174 characters in body