Hawkynt

No Padding

No padding scheme requires that input data must be an exact multiple of the block size. This approach is used when the application ensures proper data alignment or when padding would interfere with the protocol. Commonly used with stream ciphers or when data is naturally block-aligned.

Properties

Property	Value
Category	Padding Schemes
Sub-category	No Padding
Security status	Not classified
Complexity	Not specified
Inventor	N/A
Year	1970
Origin	Not specified
Source	algorithms/padding/no-padding.js

Capabilities

Flag	Value
IsLengthIncluded	No

Security

Status: not classified — treat as unverified.

Known vulnerabilities

Issue	Description	Mitigation
No Protection	No padding provides no protection against data length leakage or other attacks that padding schemes might mitigate.	—
Strict Requirements	Requires careful application design to ensure data is always properly block-aligned.	—

Documentation

• Block Cipher Modes
• Cryptographic Standards
• Padding in Cryptography

References

• ECB Mode without Padding
• Stream Cipher Usage
• Block Size Requirements

Test vectors

2 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — No padding for exact block size

Source: No padding specification

Field	Value
blockSize	16
input	6bc1bee22e409f96e93d7e117393172a
expected	6bc1bee22e409f96e93d7e117393172a

Vector 2 — No padding for multiple blocks

Source: No padding specification

Field	Value
blockSize	16
input	6bc1bee22e409f96e93d7e117393172a6bc1bee22e409f96e93d7e117393172a
expected	6bc1bee22e409f96e93d7e117393172a6bc1bee22e409f96e93d7e117393172a

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