4,936 reputation
1734
bio website
location Netherlands
age 40
visits member for 2 years, 11 months
seen 3 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.


11h
revised Secure way to derive separate encryption and MAC keys from a single master key?
deleted 3 characters in body
13h
revised Does the size of a SSH ECDSA key determine the hash algorithm?
added 84 characters in body
13h
revised Does the size of a SSH ECDSA key determine the hash algorithm?
edited title
14h
revised Security of KDF1 and KDF2 (hash based KDF's)
added 1 character in body
17h
revised What can be learned from the ciphertext of LibSodium's crypto_box_detached()?
added 76 characters in body
17h
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
17h
revised Security of KDF1 and KDF2 (hash based KDF's)
deleted 73 characters in body; edited tags
17h
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
2d
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
Oct
15
revised What is the history of recommended RSA key sizes?
deleted 2 characters in body
Oct
9
revised RFC3447 OBJECT IDENTIFIER semantic
added specifications and values + SHA-224
Oct
9
revised RFC3447 OBJECT IDENTIFIER semantic
added 1255 characters in body
Oct
4
revised What does OIW stand for
sentence had only a . but no * at the rear end (sorry for that summary)
Oct
4
revised What is the difference between “secp…” and “sect…”?
deleted 1 character in body
Oct
4
revised What is the difference between “secp…” and “sect…”?
added 118 characters in body
Oct
3
revised What is the difference between “secp…” and “sect…”?
deleted 24 characters in body
Oct
3
revised What is the difference between “secp…” and “sect…”?
added 18 characters in body