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Router

Routing-Rechner

Rucksack

related-key attack

replay attack

RC2 - Rivest Cipher 2

RC4 - Rivest Cipher 4

RC5 - Rivest Cipher 5

RFC - Request For Comment

RFC-1701 - Request For Comment No. 1701

ROTFL - Rolling-On-The-Floor-Laughing

RSA - Rivest-Shamir-Adleman

RSADSI - RSA Data Security Inc.