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  1. Wikipedia
    https://en.wikipedia.org/wiki/One-time_pad

    One-time pad - Wikipedia

    • In cryptography, the one-time pad (OTP) is an encryption technique that cannot be cracked, but requires the use of a single-use pre-shared key that is larger than or equal to the size of the message being sent. In this technique, a plaintext is paired with a random secret key (also referred to as a one-time pad). Then, each bit or character of the plaintext is encrypted by c… 展开

    History

    Frank Miller in 1882 was the first to describe the one-time pad system for securing telegraphy.
    The next one-time pad s… 展开

    Example

    Suppose Alice wishes to send the message hello to Bob. Assume two pads of paper containing identical random sequences of letters were somehow previously produced and securely issued to both. Alice chooses the appropriate u… 展开

    Perfect secrecy

    One-time pads are "information-theoretically secure" in that the encrypted message (i.e., the ciphertext) provides no information about the original message to a cryptanalyst (except the maximum possible length of the me… 展开

    What is a One-Time Pad? Definition from SearchSecurity - TechTarget
    In cryptography, a one-time pad is a system in which a randomly generated private key is used only once to encrypt a message that is then decrypted by the receiver using a matching one-time pa…
    TechTarget · https://www.techtarget.com/searc…
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  1. Boxentriq
    https://www.boxentriq.com/code-breaking/one-time-pad

    One-Time Pad (OTP) Decoder and Encoder - Boxentriq

  2. GeeksForGeeks
    https://www.geeksforgeeks.org/implementation-of...

    Implementation of Vernam Cipher or One Time Pad Algorithm

  3. 哔哩哔哩
    https://www.bilibili.com/opus/522020134861473167

    密码学之一次性密码本（One Time Pad/OTP） - 哔哩哔哩

  4. TechTarget
    https://www.techtarget.com/.../definition/on…

    What is a One-Time Pad? Definition from …

    2022年1月27日 · In cryptography, a one-time pad is a system in which a randomly generated private key is used only once to encrypt a message that is then decrypted by the receiver using a matching one-time pad and key.

  5. Crypto Museum
    https://www.cryptomuseum.com/crypto/otp/i…

    One-Time Pad OTP - Crypto Museum

    The One-Time Pad, or OTP is an encryption technique in which each character of the plaintext is combined with a character from a random key stream. Originally described in 1882 by banker Frank Miller (USA), it was re-invented in 1917 by …

  6. 其他用户还问了以下问题
    What is a one-time pad cipher?
    The ciphertext above represents "ONE TIME PAD" encrypted using the key PERFECTSECRECY. The one-time pad (OTP) is a theoretically unbreakable cipher. However, in practice it is of limited usability because it requires a pre-shared key of at least the same length as the message. This tool helps you encode or decode one-time pads if you have the key.

    One-Time Pad (OTP) Decoder and Encoder - Boxentriq

    boxentriq.com
    Why is a one-time pad (OTP) cipher unbreakable?
    These cases have been possible because of mistakes, such as not using true random keys or reusing the same key. The ciphertext above represents "ONE TIME PAD" encrypted using the key PERFECTSECRECY. The one-time pad (OTP) is a theoretically unbreakable cipher.

    One-Time Pad (OTP) Decoder and Encoder - Boxentriq

    boxentriq.com
    Is a one-time pad a good encryption method?
    Although a one-time pad is truly the only unbreakable encryption method, its use is impractical for many modern applications because the system must meet the following conditions: The key must be the same size as the message being sent. The key must be truly random. Keys must never be reused.

    What is a One-Time Pad? Definition from SearchSecurity - TechTarget

    techtarget.com
    How does one time pad encryption work?
    In One−Time Pad Encryption system, every message is scrambled using a unique key that is just as long as the message. The encrypted message (known as ciphertext) seems like complete random and has no resemblance to the original message (called plaintext). This makes it very hard to decipher without the correct key. How One−Time Pad Work?

    Cryptography - One−Time Pad Cipher - Online Tutorials Library

    tutorialspoint.com
    Why is a one-time pad called a stream cipher?
    This requirement is also why the term “one-time” is used for one-time pads. The attraction of perfect secrecy has led cryptographers to develop stream ciphers, which are a type of symmetric-key cryptosystem that emulate a one-time pad but share a much smaller secret key.

    8.2 The One-Time Pad and Perfect Secrecy - Department of Computer

    cs.toronto.edu
    Can a one-time pad key be used to decipher a message?
    In reality, we don't know which key was used, whether we must add or subtract and there is no way to decipher the original message. In fact, since a one-time pad key is truly random, you can calculate any plaintext from a given ciphertext, as long as you use the 'right' wrong key.

    One-time Pad - Cipher Machines and Cryptology

    ciphermachinesandcryptology.com
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  7. TutorialsPoint
    https://www.tutorialspoint.com/cryptogra…

    Cryptography - One−Time Pad Cipher - Online …

    The One−Time Pad Cipher provides high security by using unique keys for each message, making it very impossible for unauthorized parties to decrypt encrypted data without the relevant key. The encryption and decryption process can be …

  8. ciphermachinesandcryptology.com
    https://www.ciphermachinesandcryptology.…

    One-time Pad - Cipher Machines and Cryptology

    One-time pad (OTP), also called Vernam-cipher or the perfect cipher, is a crypto algorithm where plaintext is combined with a random key. It is the only existing mathematically unbreakable encryption.

  9. Department of Computer Science, University of Toronto
    https://www.cs.toronto.edu/.../02-one-time-pad.html

    8.2 The One-Time Pad and Perfect Secrecy - Department of …

  10. Applied Cryptography Group
    https://crypto.stanford.edu/~dabo/courses/Online...
    [PDF]

    The One Time Pad - Stanford University