The largest postcard size that still qualifies for standard postage is 4.25 inches by 6 inches. The smallest postcard for the standard rate is 3.5 inches by 5 inches. All postcards must have a paper thickness that measures between 0.007 inches and 0.016 inches.
RSA is a subsidiary of EMC; its SecurID system allows admins to configure, assign, and manage token-based authentication from a central site. According to Coviello, RSA has found no signs that the hackers made off with any customer- or employee-specific data or any information about other RSA or EMC products.
RSA is one of the first public-key cryptosystems and is widely used for secure data transmission. In such a cryptosystem, the encryption key is public and it is different from the decryption key which is kept secret. In RSA, this asymmetry is based on the practical difficulty of the factorization of the product of two large prime numbers, the factoring problem. The acronym RSA is made of the initial letters of the surnames of Ron Rivest, Adi Shamir, and Leonard Adleman, who first publicly desc