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package io.legado.app.utils |
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|
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import java.security.MessageDigest |
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import javax.crypto.Mac |
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import javax.crypto.spec.SecretKeySpec |
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object DigestUtils { |
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/** |
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* 消息摘要 |
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* 支持MD5 SHA-1 SHA-224 SHA-256 SHA-384 SHA-512 |
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* https://developer.android.google.cn/reference/java/security/MessageDigest?hl=en |
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*/ |
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fun getDigest( |
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algorithm: String, |
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data: String? |
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): String { |
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data ?: return "" |
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val bytes = getDigest(algorithm, data.toByteArray()) |
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return StringUtils.byteToHexString(bytes) |
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} |
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fun getDigest( |
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algorithm: String, |
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data: ByteArray |
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): ByteArray { |
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return kotlin.runCatching { |
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val messageDigest = MessageDigest.getInstance(algorithm) |
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messageDigest.digest(data) |
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}.getOrThrow() |
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} |
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/** |
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* 散列消息鉴别码 |
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* 支持DESMAC DESMAC/CFB8 DESedeMAC DESedeMAC/CFB8 DESedeMAC64 DESwithISO9797 HmacMD5 HmacSHA* ISO9797ALG3MAC PBEwithSHA* |
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* https://developer.android.google.cn/reference/kotlin/javax/crypto/Mac?hl=en |
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*/ |
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fun getHMac( |
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algorithm: String, |
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key: String, |
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data: String? |
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): String { |
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data ?: return "" |
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val bytes = getHMac(algorithm, key.toByteArray(), data.toByteArray()) |
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return StringUtils.byteToHexString(bytes) |
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} |
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|
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fun getHMac( |
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algorithm: String, |
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key: ByteArray, |
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data: ByteArray |
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): ByteArray { |
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return kotlin.runCatching { |
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val mac= Mac.getInstance(algorithm) |
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val keySpec = SecretKeySpec(key, algorithm) |
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mac.init(keySpec) |
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mac.update(data) |
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mac.doFinal() |
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}.getOrThrow() |
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} |
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|
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} |
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