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CWE-1279

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CWE-1279

Cryptographic Operations are run Before Supporting Units are Ready

Base
Incomplete

Description

Performing cryptographic operations without ensuring that the supporting inputs are ready to supply valid data may compromise the cryptographic result.

Many cryptographic hardware units depend upon other hardware units to supply information to them to produce a securely encrypted result. For example, a cryptographic unit that depends on an external random-number-generator (RNG) unit for entropy must wait until the RNG unit is producing random numbers. If a cryptographic unit retrieves a private encryption key from a fuse unit, the fuse unit must be up and running before a key may be supplied.

Common Consequences

Scope

Access Control
Confidentiality
Integrity
Availability
Accountability
Authentication
Authorization
Non-Repudiation

Impact

Varies by Context

Potential Mitigations

Architecture and Design

Best practices should be used to design cryptographic systems.

Implementation

Continuously ensuring that cryptographic inputs are supplying valid information is necessary to ensure that the encrypted output is secure.

Applicable Platforms

Verilog
VHDL
Not Language-Specific

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