getsops/sops · error

all parts must be the same length

Error message

all parts must be the same length

What it means

Error "all parts must be the same length" thrown in getsops/sops.

Source

Thrown at shamir/shamir.go:269

	return out, nil
}

// Combine is used to reverse a Split and reconstruct a secret
// once a `threshold` number of parts are available.
func Combine(parts [][]byte) ([]byte, error) {
	// Verify enough parts provided
	if len(parts) < 2 {
		return nil, fmt.Errorf("less than two parts cannot be used to reconstruct the secret")
	}

	// Verify the parts are all the same length
	firstPartLen := len(parts[0])
	if firstPartLen < 2 {
		return nil, fmt.Errorf("parts must be at least two bytes")
	}
	for i := 1; i < len(parts); i++ {
		if len(parts[i]) != firstPartLen {
			return nil, fmt.Errorf("all parts must be the same length")
		}
	}

	// Create a buffer to store the reconstructed secret
	secret := make([]byte, firstPartLen-1)

	// Buffer to store the samples
	xSamples := make([]uint8, len(parts))
	ySamples := make([]uint8, len(parts))

	// Set the x value for each sample and ensure no x_sample values are the same,
	// otherwise div() can be unhappy
	// Check that we don't have any duplicate parts, that is, two or
	// more parts with the same x coordinate.
	checkMap := map[byte]bool{}
	for i, part := range parts {
		samp := part[firstPartLen-1]
		if exists := checkMap[samp]; exists {

View on GitHub (pinned to 13442bb981)

When it happens

Trigger: Thrown at shamir/shamir.go:269 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of getsops/sops@13442bb981 (2026-09-01). Data as JSON: /api/errors/650249f72b3b4a35. Report an issue: GitHub.