AES algorithm. The Group length is 128 bits, and the key length can be 128, 192, or 256 bits.
Aes_128_cbc(Cipher Block Chaining)1,The total number of bits in the plaintext must be a multiple of the block size, 128bit.Encryption is to encrypt and splice each segment, and add IV to the header. The input includes AES key, IV, plaintext | padding, and the output is ciphertext;During decryption, the input includes AES key, IV, and ciphertext, and the output is plaintext.
2,CBC encryption: C1 =Ciphk(P
(0x80, 0x00, 0x00, 0x00 ),
Array (0x1b, 0x00, 0x00, 0x00 ),
Array (0x36, 0x00, 0x00, 0x00 ));
}
/*-------------------------------------- ---------*/
/* AES counter (CTR) mode implementation in PHP (c) Chris Veness 2005-2011. Right of free use is */
/* Granted for all specified cial or non-specified cial use under CC-BY licence. No warranty of any */
/* Form is offered .*/
/*-------------------------------------- ---------*/
Class
PRNG based on the hash function The process is very similar to the CTR working mode of symmetric ciphers The pseudo code of the algorithm is as followsM =⌈n/outlen⌉data = VW = the null StringFor i = 1 to MWI = H (data)w = W | | WiData = (data + 1) MoD 2seedlenreturn leftmost n bits of WDescriptionV is the seed, Seedlen is the length of V, n is the desired output bit number, H is the hash functionFor strong cryptographic hashing algorithms such as SHA-2, there is no known or suspected flaw in P
customers, both in depth and in breadth, and require a lot of experience and technology.
[Information security consulting consultant]Information security has both technical and management problems, such as traditional strategy, HR, and IT Consulting. Information security consulting is also the main service in professional services, such: risk assessment, ISMs building, Sox compliance ......Information security cannot be separated from the business and actual needs of the enterprise. Otherwise,
/256-bit keys $state = Array (); InitialiSe 4xNb byte-array "state" with input [§3.4] for ($i =0; $i
The aesctr.class.php file is as follows:
R (CTR) mode implementation in PHP (c) Chris Veness 2005-2011. Right of free use is */* granted for all commercial or non-commercial use under cc-by licence. No warranty of any/*/* form is offered. NDS Aes {/** * Encrypt a text using Aes encryption in Counter mode of operation *-See Http://csrc.nist.gov/publi Cation
agencies, and establishes a mechanism for controlling and acknowledging the functions of commercial products and software INFOSEC. Section No. 3544 covers the responsibilities of the Organization (including IT controls).
Federal Information Processing Standards (FIPS) release 200
Specifies the minimum security requirements for federal information and information systems and outlines the recommended usage found in the NIST Special publication (SP) 800-53. In the AU-2 section of N
References
Defining between this Definition and other checklists or documents
NIST SP800-68 Appendix A, 1.4bHttp://cce.mitre.orgCCE-9357-5
Description
Definition description
Minimum Password Length
Criteria ):
Extend_definition definition_ref
Another Definition identifier (when this Definition needs to be used together with another Definition)
Oval: gov. nist. cpe. oval: def: 1
Extend_def
. No warranty of any *//* form is offered. NDS Aes {/** * Encrypt a text using Aes encryption in Counter mode of operation *-See http://csrc.nist.gov/pub Lications/nistpubs/800-38a/sp800-38a.pdf * * Unicode multi-byte Character Safe * * @param plaintext source text to be encrypted * @param password the password to use to generate a key * @param nBits number of bits to being u
speed 1200mpix/s. 128MP Sensor support
MIPI CSI 2.0 up to 1.5Gbps (per lane)
Supports x4 and X2 configurations (3x4lane or 6x2-lane cameras)
Clock System
System clock: 38.4MHz, sleep clock: 32.768KHz, dynamic clock adjustment and clock source selection
Boot Source
eMMC and USB (Recovery mode)
Encrypt
Encrypted memory with video-protected area to protect immediate resultsConfigurable, encrypted DRAM area
Contact Us
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.