101 lines
2.5 KiB
Smali
101 lines
2.5 KiB
Smali
.class public Lcom/amazonaws/cognito/clientcontext/util/SignatureGenerator;
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.super Ljava/lang/Object;
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.source "SignatureGenerator.java"
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# static fields
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.field private static final ALGORITHM:Ljava/lang/String; = "HmacSHA256"
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.field private static final TAG:Ljava/lang/String; = "HMAC_SHA256_Signature"
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# direct methods
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.method public constructor <init>()V
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.locals 0
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.line 1
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invoke-direct {p0}, Ljava/lang/Object;-><init>()V
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return-void
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.end method
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.method private logWarning(Ljava/lang/Exception;)V
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.locals 2
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const-string v0, "HMAC_SHA256_Signature"
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const-string v1, "Exception while completing context data signature"
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.line 1
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invoke-static {v0, v1, p1}, Landroid/util/Log;->w(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I
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return-void
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.end method
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# virtual methods
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.method public getSignature(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
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.locals 4
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const-string v0, "HmacSHA256"
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.line 1
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:try_start_0
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invoke-static {v0}, Ljavax/crypto/Mac;->getInstance(Ljava/lang/String;)Ljavax/crypto/Mac;
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move-result-object v1
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.line 2
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new-instance v2, Ljavax/crypto/spec/SecretKeySpec;
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sget-object v3, Lcom/amazonaws/cognito/clientcontext/data/ConfigurationConstant;->DEFAULT_CHARSET:Ljava/nio/charset/Charset;
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invoke-virtual {p2, v3}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B
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move-result-object p2
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invoke-direct {v2, p2, v0}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V
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.line 3
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invoke-virtual {v1, v2}, Ljavax/crypto/Mac;->init(Ljava/security/Key;)V
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.line 4
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invoke-virtual {p3, v3}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B
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move-result-object p2
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.line 5
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invoke-virtual {v1, p2}, Ljavax/crypto/Mac;->update([B)V
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.line 6
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invoke-virtual {p1, v3}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B
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move-result-object p1
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.line 7
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invoke-virtual {v1, p1}, Ljavax/crypto/Mac;->doFinal([B)[B
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move-result-object p1
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const/4 p2, 0x0
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invoke-static {p1, p2}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;
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move-result-object p1
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:try_end_0
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.catch Ljava/lang/Exception; {:try_start_0 .. :try_end_0} :catch_0
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goto :goto_0
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:catch_0
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move-exception p1
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.line 8
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invoke-direct {p0, p1}, Lcom/amazonaws/cognito/clientcontext/util/SignatureGenerator;->logWarning(Ljava/lang/Exception;)V
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const-string p1, ""
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:goto_0
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return-object p1
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.end method
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