OpenSSLPBKDF$PBKDF.smali

.class public Lorg/spongycastle/jcajce/provider/symmetric/OpenSSLPBKDF$PBKDF;
.super Lorg/spongycastle/jcajce/provider/symmetric/util/BaseSecretKeyFactory;
.source "OpenSSLPBKDF.java"


# direct methods
.method public constructor <init>()V
    .registers 3

    .prologue
    .line 28
    const-string v0, "PBKDF-OpenSSL"

    const/4 v1, 0x0

    invoke-direct {p0, v0, v1}, Lorg/spongycastle/jcajce/provider/symmetric/util/BaseSecretKeyFactory;-><init>(Ljava/lang/String;Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)V

    .line 29
    return-void
.end method


# virtual methods
.method protected engineGenerateSecret(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;
    .registers 5

    .prologue
    .line 35
    instance-of v0, p1, Ljavax/crypto/spec/PBEKeySpec;

    if-eqz v0, :cond_8b

    .line 37
    check-cast p1, Ljavax/crypto/spec/PBEKeySpec;

    .line 39
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getSalt()[B

    move-result-object v0

    if-nez v0, :cond_14

    .line 41
    new-instance v0, Ljava/security/spec/InvalidKeySpecException;

    const-string v1, "missing required salt"

    invoke-direct {v0, v1}, Ljava/security/spec/InvalidKeySpecException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 44
    :cond_14
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getIterationCount()I

    move-result v0

    if-gtz v0, :cond_33

    .line 46
    new-instance v0, Ljava/security/spec/InvalidKeySpecException;

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "positive iteration count required: "

    invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    .line 47
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getIterationCount()I

    move-result v2

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v1

    invoke-direct {v0, v1}, Ljava/security/spec/InvalidKeySpecException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 50
    :cond_33
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getKeyLength()I

    move-result v0

    if-gtz v0, :cond_52

    .line 52
    new-instance v0, Ljava/security/spec/InvalidKeySpecException;

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "positive key length required: "

    invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    .line 53
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getKeyLength()I

    move-result v2

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v1

    invoke-direct {v0, v1}, Ljava/security/spec/InvalidKeySpecException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 56
    :cond_52
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getPassword()[C

    move-result-object v0

    array-length v0, v0

    if-nez v0, :cond_61

    .line 58
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "password empty"

    invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 61
    :cond_61
    new-instance v0, Lorg/spongycastle/crypto/generators/OpenSSLPBEParametersGenerator;

    invoke-direct {v0}, Lorg/spongycastle/crypto/generators/OpenSSLPBEParametersGenerator;-><init>()V

    .line 63
    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getPassword()[C

    move-result-object v1

    invoke-static {v1}, Lorg/spongycastle/util/Strings;->toByteArray([C)[B

    move-result-object v1

    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getSalt()[B

    move-result-object v2

    invoke-virtual {v0, v1, v2}, Lorg/spongycastle/crypto/generators/OpenSSLPBEParametersGenerator;->init([B[B)V

    .line 65
    new-instance v1, Ljavax/crypto/spec/SecretKeySpec;

    invoke-virtual {p1}, Ljavax/crypto/spec/PBEKeySpec;->getKeyLength()I

    move-result v2

    invoke-virtual {v0, v2}, Lorg/spongycastle/crypto/generators/OpenSSLPBEParametersGenerator;->generateDerivedParameters(I)Lorg/spongycastle/crypto/CipherParameters;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/crypto/params/KeyParameter;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/params/KeyParameter;->getKey()[B

    move-result-object v0

    const-string v2, "OpenSSLPBKDF"

    invoke-direct {v1, v0, v2}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    return-object v1

    .line 68
    :cond_8b
    new-instance v0, Ljava/security/spec/InvalidKeySpecException;

    const-string v1, "Invalid KeySpec"

    invoke-direct {v0, v1}, Ljava/security/spec/InvalidKeySpecException;-><init>(Ljava/lang/String;)V

    throw v0
.end method