a.smali
.class public final Lcom/cmcm/safewallet/data/coinprovider/tools/a;
.super Ljava/lang/Object;
.source "AESUtils.java"
# annotations
.annotation build Landroid/annotation/SuppressLint;
value = {
"TrulyRandom"
}
.end annotation
# direct methods
.method static t([B)[B
.registers 4
.annotation build Landroid/annotation/SuppressLint;
value = {
"TrulyRandom"
}
.end annotation
.prologue
.line 56
const-string v0, "AES"
invoke-static {v0}, Ljavax/crypto/KeyGenerator;->getInstance(Ljava/lang/String;)Ljavax/crypto/KeyGenerator;
move-result-object v1
.line 58
sget v0, Landroid/os/Build$VERSION;->SDK_INT:I
const/16 v2, 0x18
if-lt v0, v2, :cond_28
.line 59
const-string v0, "SHA1PRNG"
new-instance v2, Lcom/cmcm/safewallet/data/coinprovider/tools/CryptoProvider;
invoke-direct {v2}, Lcom/cmcm/safewallet/data/coinprovider/tools/CryptoProvider;-><init>()V
invoke-static {v0, v2}, Ljava/security/SecureRandom;->getInstance(Ljava/lang/String;Ljava/security/Provider;)Ljava/security/SecureRandom;
move-result-object v0
.line 65
:goto_17
invoke-virtual {v0, p0}, Ljava/security/SecureRandom;->setSeed([B)V
.line 67
const/16 v2, 0x80
invoke-virtual {v1, v2, v0}, Ljavax/crypto/KeyGenerator;->init(ILjava/security/SecureRandom;)V
.line 68
invoke-virtual {v1}, Ljavax/crypto/KeyGenerator;->generateKey()Ljavax/crypto/SecretKey;
move-result-object v0
.line 69
invoke-interface {v0}, Ljavax/crypto/SecretKey;->getEncoded()[B
move-result-object v0
.line 70
return-object v0
.line 60
:cond_28
sget v0, Landroid/os/Build$VERSION;->SDK_INT:I
const/16 v2, 0x11
if-lt v0, v2, :cond_37
.line 61
const-string v0, "SHA1PRNG"
const-string v2, "Crypto"
invoke-static {v0, v2}, Ljava/security/SecureRandom;->getInstance(Ljava/lang/String;Ljava/lang/String;)Ljava/security/SecureRandom;
move-result-object v0
goto :goto_17
.line 63
:cond_37
const-string v0, "SHA1PRNG"
invoke-static {v0}, Ljava/security/SecureRandom;->getInstance(Ljava/lang/String;)Ljava/security/SecureRandom;
move-result-object v0
goto :goto_17
.end method
.method public static u([B)Ljava/lang/String;
.registers 6
.prologue
.line 108
if-nez p0, :cond_5
.line 109
const-string v0, ""
.line 114
:goto_4
return-object v0
.line 110
:cond_5
new-instance v1, Ljava/lang/StringBuffer;
array-length v0, p0
mul-int/lit8 v0, v0, 0x2
invoke-direct {v1, v0}, Ljava/lang/StringBuffer;-><init>(I)V
.line 111
const/4 v0, 0x0
:goto_e
array-length v2, p0
if-ge v0, v2, :cond_2f
.line 112
aget-byte v2, p0, v0
.line 1118
const-string v3, "0123456789ABCDEF"
shr-int/lit8 v4, v2, 0x4
and-int/lit8 v4, v4, 0xf
invoke-virtual {v3, v4}, Ljava/lang/String;->charAt(I)C
move-result v3
invoke-virtual {v1, v3}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;
move-result-object v3
const-string v4, "0123456789ABCDEF"
and-int/lit8 v2, v2, 0xf
invoke-virtual {v4, v2}, Ljava/lang/String;->charAt(I)C
move-result v2
invoke-virtual {v3, v2}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;
.line 111
add-int/lit8 v0, v0, 0x1
goto :goto_e
.line 114
:cond_2f
invoke-virtual {v1}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;
move-result-object v0
goto :goto_4
.end method