Cryptographic Operations are run Before Supporting Units are Ready

Opis

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.

Skutki

• Access Control, Confidentiality, Integrity, Availability, Accountability, Authentication, Authorization, Non-Repudiation

  Varies by Context

Zapobieganie

• 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.

Słabość nadrzędna

• CWE-696 Incorrect Behavior Order
• CWE-665 Improper Initialization

Kiedy powstaje

• Architecture and Design
• Implementation — The decision to continue using a cryptographic unit even though the input units to it are not producing valid data will compromise the encrypted result.

Dotyczy

Verilog, VHDL, Not Language-Specific, Not OS-Specific, Not Architecture-Specific, Processor Hardware, Not Technology-Specific