HMAC is a technique for cryptographicauthentication. It uses both a cryptographic hash function and a shared secret key to encrypt information and protect it from unauthorized access. A hash function is analgorithmor mathematical function that converts a message that consists of a variable number of...
MD5 is the third message-digest algorithm Rivest created. MD2, MD4 and MD5 have similar structures, but MD2 was optimized for 8-bit machines, in comparison with the two later algorithms, which are designed for 32-bit machines. The MD5 algorithm is an extension of MD4, which the critical ...
The Google algorithm has been adjusted to assist websites with SSL certificates; as a result, the great majority of top results for almost any phrase will have an SSL certificate. Disadvantages of using SSL The expense of obtaining and setting an SSL is the biggest downside. A low-cost SSL...
like FTPS, HTTPS, SFTP, and others. AES is a symmetric key cipher, which is good for encrypting the data being transferred, and the commands being sent between the servers. AES is generally faster and uses less resources than an asymmetric key cipher like a public key encryption algorithm. ...
First, the OTP generator uses a hashed message authentication code (HMAC) algorithm to create a new, random code for each access request. As the name implies, all OTPs only work once, but the unique password will either be hash-based (HOTP) or time-based (TOTP). ...
HOTP Algorithm Explained HMAC is a cryptographic technique that involves a cryptographic hash function (usually SHA-1) and a set of parameters (secret key, counter). Without going into too many details, you can think of a hash function as a meat grinder that minces whatever you put into it...
Technically speaking, the Time-Based One-Time Password algorithm is a variation of the HMAC-Based One-Time Password (HOTP) algorithm where the counter is replaced with the current time value. Without getting into too much technical jargon, the TOTP Algorithm is based on a hash function that ta...
encryption, public key algorithm for digital signature and authentication, and HMAC algorithm for data integrity protection. The SSH server and client support multiple algorithms of each type, and therefore need to negotiate and determine the algorithm to be used in each type. The process is as ...
A one-time password (OTP) is created using an algorithm and sent via text message to a phone number associated with the user. This automatically generated sequence of characters (letters and/or numbers) is valid for a single login session or transaction. The user copies the OTP to an authen...
OSPF uses the shortest path first (SPF) algorithm to calculate routes, resulting in fast route convergence. Adjacency Establishment Adjacencies can be established in either of the following situations: Two routers have established a neighbor relationship and communicate for the first time. The designat...