Comment on Service lets you "certify" a document using the Bitcoin blockchainComments−eddywebs12ynice concept ! apparently sha-1 is vulnerable to collisions (http://eprint.iacr.org/2008/469.pdf) how are they handled ?−sp33212yIt uses SHA-256, not SHA-1.−darky304112yBy using SHA-2?−kcbanner12yExcuse me?
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nice concept ! apparently sha-1 is vulnerable to collisions (http://eprint.iacr.org/2008/469.pdf) how are they handled ?
It uses SHA-256, not SHA-1.
By using SHA-2?
Excuse me?