FIx TPM attestation certificate problem #345
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (3)
protocol/attestation.go (1)
248-248: Adjust code formatting to meet linter recommendationsThe static analysis tool (
wsl) suggests that assignments should only be cuddled with other assignments at line 248. Consider adjusting the code formatting for consistency.Apply this diff to align with the linter's suggestions:
- x5cParsed, err := x509.ParseCertificate(x5cRaw) - if err != nil { + x5cParsed, err := x509.ParseCertificate(x5cRaw) + if err != nil {🧰 Tools
🪛 golangci-lint (1.62.2)
248-248: assignments should only be cuddled with other assignments
(wsl)
protocol/attestation_tpm.go (2)
412-412: Consider pre-allocating theunknownslice for better performanceThe static analysis tool (
prealloc) suggests pre-allocating theunknownslice to improve performance by minimizing allocations.Apply this diff to pre-allocate the slice based on the length of
x5c.UnknownExtKeyUsage:-func tpmRemoveEKU(x5c *x509.Certificate) error { - var unknown []asn1.ObjectIdentifier +func tpmRemoveEKU(x5c *x509.Certificate) error { + unknown := make([]asn1.ObjectIdentifier, 0, len(x5c.UnknownExtKeyUsage))🧰 Tools
🪛 golangci-lint (1.62.2)
412-412: Consider pre-allocating
unknown(prealloc)
412-429: Ensure proper handling of EKUs intpmRemoveEKUfunctionThe
tpmRemoveEKUfunction correctly checks for the presence of the AIK EKU (tcgKpAIKCertificate) and excludes unknown EKUs. However, consider the following improvements:
- Error Message Consistency: The error message returned when the AIK EKU is missing could provide more context.
- EKU Validation: Double-check that all necessary EKUs are accounted for according to the TPM specifications.
🧰 Tools
🪛 golangci-lint (1.62.2)
412-412: Consider pre-allocating
unknown(prealloc)
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📒 Files selected for processing (2)
protocol/attestation.go(1 hunks)protocol/attestation_tpm.go(1 hunks)
🧰 Additional context used
🪛 golangci-lint (1.62.2)
protocol/attestation.go
248-248: assignments should only be cuddled with other assignments
(wsl)
252-252: if statements should only be cuddled with assignments
(wsl)
277-277: assignments should only be cuddled with other assignments
(wsl)
284-284: if statements should only be cuddled with assignments
(wsl)
249-249: only one cuddle assignment allowed before if statement
(wsl)
263-263: if statements should only be cuddled with assignments
(wsl)
266-266: only one cuddle assignment allowed before range statement
(wsl)
278-278: only one cuddle assignment allowed before if statement
(wsl)
protocol/attestation_tpm.go
412-412: Consider pre-allocating unknown
(prealloc)
🔇 Additional comments (3)
protocol/attestation.go (3)
235-256: Proper handling of multiple attestation certificates
The code correctly iterates over x5cs to parse each certificate. The first certificate is assigned to x5c (the leaf certificate), and the subsequent certificates are added to the parents slice (intermediate certificates). Error handling is appropriately managed for parsing failures.
🧰 Tools
🪛 golangci-lint (1.62.2)
248-248: assignments should only be cuddled with other assignments
(wsl)
252-252: if statements should only be cuddled with assignments
(wsl)
249-249: only one cuddle assignment allowed before if statement
(wsl)
263-270: Correct application of tpmRemoveEKU to certificates
The invocation of tpmRemoveEKU on both the primary certificate (x5c) and all parent certificates ensures that Extended Key Usage (EKU) entries are properly managed. This enhances the security and compliance of attestation validation.
🧰 Tools
🪛 golangci-lint (1.62.2)
263-263: if statements should only be cuddled with assignments
(wsl)
266-266: only one cuddle assignment allowed before range statement
(wsl)
277-284: Proper setup of certificate verifier and chain verification
The code accurately sets up the verifier using the metadata statement. It adds intermediate certificates to verifier.Intermediates when available and performs the certificate chain verification using x5c.Verify(verifier). This approach ensures the attestation certificate is validated against the correct trust anchors.
🧰 Tools
🪛 golangci-lint (1.62.2)
277-277: assignments should only be cuddled with other assignments
(wsl)
284-284: if statements should only be cuddled with assignments
(wsl)
278-278: only one cuddle assignment allowed before if statement
(wsl)
fix #342