mirror of https://github.com/octoleo/restic.git
22 lines
645 B
Go
22 lines
645 B
Go
package restic
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import "github.com/restic/restic/internal/crypto"
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// NewBlobBuffer returns a buffer that is large enough to hold a blob of size
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// plaintext bytes, including the crypto overhead.
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func NewBlobBuffer(size int) []byte {
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return make([]byte, size, size+crypto.Extension)
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}
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// PlaintextLength returns the plaintext length of a blob with ciphertextSize
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// bytes.
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func PlaintextLength(ciphertextSize int) int {
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return ciphertextSize - crypto.Extension
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}
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// CiphertextLength returns the encrypted length of a blob with plaintextSize
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// bytes.
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func CiphertextLength(plaintextSize int) int {
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return plaintextSize + crypto.Extension
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}
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