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29 lines
941 B
29 lines
941 B
package s3api
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import (
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"encoding/base64"
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
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)
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// StoreSSECIVInMetadata stores the SSE-C IV in entry metadata as base64 encoded string
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// Used by SSE-C for storing IV in entry.Extended
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func StoreSSECIVInMetadata(metadata map[string][]byte, iv []byte) {
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if len(iv) > 0 {
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metadata[s3_constants.SeaweedFSSSEIV] = []byte(base64.StdEncoding.EncodeToString(iv))
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}
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}
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// GetSSECIVFromMetadata retrieves the SSE-C IV from entry metadata
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// Used by SSE-C for retrieving IV from entry.Extended
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func GetSSECIVFromMetadata(metadata map[string][]byte) ([]byte, error) {
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if ivBase64, exists := metadata[s3_constants.SeaweedFSSSEIV]; exists {
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iv, err := base64.StdEncoding.DecodeString(string(ivBase64))
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if err != nil {
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return nil, fmt.Errorf("failed to decode SSE-C IV from metadata: %w", err)
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}
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return iv, nil
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}
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return nil, fmt.Errorf("SSE-C IV not found in metadata")
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}
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