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While RSA SecurID tokens offer a level of protection against password replay attacks, they are not designed to offer protection against man in the middle type attacks when used alone. If the attacker manages to block the authorized user from authenticating to the server until the next token code will be valid, he will be able to log into the ...
The security of RSA relies on the practical difficulty of factoring the product of two large prime numbers, the "factoring problem". Breaking RSA encryption is known as the RSA problem. Whether it is as difficult as the factoring problem is an open question. [3] There are no published methods to defeat the system if a large enough key is used.
RSA Security LLC, [5] formerly RSA Security, Inc. and trade name RSA, is an American computer and network security company with a focus on encryption and decryption standards. RSA was named after the initials of its co-founders, Ron Rivest , Adi Shamir and Leonard Adleman , after whom the RSA public key cryptography algorithm was also named. [ 6 ]
However, some such systems, such as RSA's SecurID, allow the user to re-synchronize the server with the token, sometimes by entering several consecutive passcodes. Most also cannot have replaceable batteries and only last up to 5 years before having to be replaced – so there is an additional cost. [ 3 ]
A software token (a.k.a. soft token) is a type of two-factor authentication security device that may be used to authorize the use of computer services. Software tokens are stored on a general-purpose electronic device such as a desktop computer, laptop, PDA, or mobile phone and can be duplicated.
The PKCS #11 standard defines a platform-independent API to cryptographic tokens, such as hardware security modules (HSM) and smart cards, and names the API itself "Cryptoki" (from "cryptographic token interface" and pronounced as "crypto-key", although "PKCS #11" is often used to refer to the API as well as the standard that defines it).
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The difficulty of breaking the RSA cipher—recovering a plaintext message given a ciphertext and the public key—is connected to the difficulty of factoring large numbers. While it is not known whether the two problems are mathematically equivalent, factoring is currently the only publicly known method of directly breaking RSA.
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related to: rsa fix tokenExtremely simple yet feature-packed auditing solution - ITSM Daily