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Update dependencies (#2180)
* Update dependencies * Fix whatsmeow API changes
This commit is contained in:
47
vendor/go.mau.fi/whatsmeow/util/cbcutil/cbc.go
vendored
47
vendor/go.mau.fi/whatsmeow/util/cbcutil/cbc.go
vendored
@ -18,7 +18,10 @@ import (
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"bytes"
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"crypto/aes"
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"crypto/cipher"
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"crypto/hmac"
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"crypto/rand"
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"crypto/sha256"
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"errors"
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"fmt"
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"io"
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)
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@ -99,3 +102,47 @@ func unpad(src []byte) ([]byte, error) {
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return src[:(length - padLen)], nil
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}
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func EncryptStream(key, iv, macKey []byte, plaintext io.Reader, ciphertext io.Writer) ([]byte, []byte, uint64, error) {
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block, err := aes.NewCipher(key)
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if err != nil {
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return nil, nil, 0, fmt.Errorf("failed to create cipher: %w", err)
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}
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cbc := cipher.NewCBCEncrypter(block, iv)
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plainHasher := sha256.New()
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cipherHasher := sha256.New()
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cipherMAC := hmac.New(sha256.New, macKey)
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cipherMAC.Write(iv)
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buf := make([]byte, 32*1024)
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var size int
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hasMore := true
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for hasMore {
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var n int
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n, err = io.ReadFull(plaintext, buf)
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plainHasher.Write(buf[:n])
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size += n
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if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) {
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padding := aes.BlockSize - size%aes.BlockSize
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buf = append(buf[:n], bytes.Repeat([]byte{byte(padding)}, padding)...)
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hasMore = false
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} else if err != nil {
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return nil, nil, 0, fmt.Errorf("failed to read file: %w", err)
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}
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cbc.CryptBlocks(buf, buf)
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cipherMAC.Write(buf)
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cipherHasher.Write(buf)
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_, err = ciphertext.Write(buf)
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if err != nil {
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return nil, nil, 0, fmt.Errorf("failed to write file: %w", err)
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}
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}
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mac := cipherMAC.Sum(nil)[:10]
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cipherHasher.Write(mac)
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_, err = ciphertext.Write(mac)
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if err != nil {
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return nil, nil, 0, fmt.Errorf("failed to write checksum to file: %w", err)
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}
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return plainHasher.Sum(nil), cipherHasher.Sum(nil), uint64(size), nil
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}
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