Crypto Algorithms List Properties Description

crypto-algorithms-list-properties-description.md

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+# SPDX Cryptographic Algorithms List properties description
+
+## Id
+
+* Description: univocal identifier for every cryptographic algorithm. This list provides an identifier per algorithm.
+* Values: alphanumeric, where the usage of lower or upper case characters depend on each algorithm
+
+## Name
+
+* Description: widely accepted name provided by the author of the algorithm or a standardization body
+* Values: string
+
+## commonkeySize
+
+* Description: the detected key size
+* Values: bbbb, where bbbb is an integer, provided in bits. More than one value is possible, separated by the operator AND
+
+## specifiedkeySize
+
+* Description: the default key size or range determined by the authors of the algorithm, standardization or compliance bodies/agencies
+* Values: any of these options are valid
+   * bbbb, where bbbb is an integer, provided in bits. More than one value is possible, separated by the operator AND
+   * bbbb TO cccc, where bbbb and cccc are integers, provided in bits, to express a range
+
+## cryptoClass
+
+* Description: cryptographic algorithms are categorized in classes. The classes are defined by the number of cryptographic keys that are used in conjunction with the algorithm.
+   * Cryptographic hash functions do not require keys for their basic operation.
+   * Symmetric-key algorithms transform data in a way that is fundamentally difficult to undo without knowledge of a secret key. The key is “symmetric” because the same key is used for a cryptographic operation and its inverse
+   * Asymmetric-key algorithms, commonly known as public-key algorithms, use two related keys (i.e., a key pair) to perform their functions: a public key and a private key. The public key may be known by anyone; the private key should be under the sole control of the entity that “owns” the key pair. Even though the public and private keys of a key pair are related, knowledge of the public key cannot be used to determine the private key.
+* Values: "Cryptographic-Hash-Function" , "Symetric-Key-Algorithm" or "Asymmetric-Key-Algorithm"
+
+Note: the subclasses has been added to the cryptoClass property, separated by a "/" character from the class. This specific way to structure the subclasses is WIP.