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  2. Optimal asymmetric encryption padding - Wikipedia

    en.wikipedia.org/wiki/Optimal_asymmetric...

    In cryptography, Optimal Asymmetric Encryption Padding (OAEP) is a padding scheme often used together with RSA encryption.OAEP was introduced by Bellare and Rogaway, [1] and subsequently standardized in PKCS#1 v2 and RFC 2437.

  3. Bitcoin scalability problem - Wikipedia

    en.wikipedia.org/wiki/Bitcoin_scalability_problem

    The block size limit, in concert with the proof-of-work difficulty adjustment settings of bitcoin's consensus protocol, constitutes a bottleneck in bitcoin's transaction processing capacity. This can result in increasing transaction fees and delayed processing of transactions that cannot be fit into a block. [ 4 ]

  4. eToro - Wikipedia

    en.wikipedia.org/wiki/EToro

    On 8 January 2021, eToro informed its European clients that "due to extreme market volatility in the crypto markets," margin positions for all leveraged crypto positions needed to be converted into non-leveraged. Customers were warned that failure to comply would lead to position closures within four hours.

  5. Key size - Wikipedia

    en.wikipedia.org/wiki/Key_size

    In [1] cryptography, key size or key length refers to the number of bits in a key used by a cryptographic algorithm (such as a cipher).. Key length defines the upper-bound on an algorithm's security (i.e. a logarithmic measure of the fastest known attack against an algorithm), because the security of all algorithms can be violated by brute-force attacks.

  6. McEliece cryptosystem - Wikipedia

    en.wikipedia.org/wiki/McEliece_cryptosystem

    For resiliency against quantum computers, sizes of =, =, = with Goppa code were proposed, giving the size of public key of 8 373 911 bits. [10] In its round 3 submission to the NIST post quantum standardization the highest level of security, level 5 is given for parameter sets 6688128, 6960119, and 8192128.

  7. Block cipher mode of operation - Wikipedia

    en.wikipedia.org/wiki/Block_cipher_mode_of_operation

    Random bit errors occur independently in any bit position with an expected probability of ½. Specific bit errors occur in the same bit position(s) as the original bit error(s). Specific bit errors in stream cipher modes (OFB, CTR, etc.) are trivial. They affect only the specific bit intended.

  8. Paillier cryptosystem - Wikipedia

    en.wikipedia.org/wiki/Paillier_cryptosystem

    The Paillier cryptosystem, invented by and named after Pascal Paillier in 1999, is a probabilistic asymmetric algorithm for public key cryptography.The problem of computing n-th residue classes is believed to be computationally difficult.

  9. S-box - Wikipedia

    en.wikipedia.org/wiki/S-box

    In cryptography, an S-box (substitution-box) is a basic component of symmetric key algorithms which performs substitution. In block ciphers, they are typically used to obscure the relationship between the key and the ciphertext, thus ensuring Shannon's property of confusion.

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