DTLSProtocol.smali

.class public abstract Lorg/spongycastle/crypto/tls/DTLSProtocol;
.super Ljava/lang/Object;
.source "DTLSProtocol.java"


# instance fields
.field protected final secureRandom:Ljava/security/SecureRandom;


# direct methods
.method protected constructor <init>(Ljava/security/SecureRandom;)V
    .registers 4

    .prologue
    .line 17
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 18
    if-nez p1, :cond_d

    .line 20
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "\'secureRandom\' cannot be null"

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

    throw v0

    .line 23
    :cond_d
    iput-object p1, p0, Lorg/spongycastle/crypto/tls/DTLSProtocol;->secureRandom:Ljava/security/SecureRandom;

    .line 24
    return-void
.end method

.method protected static applyMaxFragmentLengthExtension(Lorg/spongycastle/crypto/tls/DTLSRecordLayer;S)V
    .registers 4

    .prologue
    .line 44
    if-ltz p1, :cond_17

    .line 46
    invoke-static {p1}, Lorg/spongycastle/crypto/tls/MaxFragmentLength;->isValid(S)Z

    move-result v0

    if-nez v0, :cond_10

    .line 48
    new-instance v0, Lorg/spongycastle/crypto/tls/TlsFatalAlert;

    const/16 v1, 0x50

    invoke-direct {v0, v1}, Lorg/spongycastle/crypto/tls/TlsFatalAlert;-><init>(S)V

    throw v0

    .line 51
    :cond_10
    const/4 v0, 0x1

    add-int/lit8 v1, p1, 0x8

    shl-int/2addr v0, v1

    .line 52
    invoke-virtual {p0, v0}, Lorg/spongycastle/crypto/tls/DTLSRecordLayer;->setPlaintextLimit(I)V

    .line 54
    :cond_17
    return-void
.end method

.method protected static evaluateMaxFragmentLengthExtension(ZLjava/util/Hashtable;Ljava/util/Hashtable;S)S
    .registers 6

    .prologue
    .line 59
    invoke-static {p2}, Lorg/spongycastle/crypto/tls/TlsExtensionsUtils;->getMaxFragmentLengthExtension(Ljava/util/Hashtable;)S

    move-result v0

    .line 60
    if-ltz v0, :cond_1a

    .line 62
    invoke-static {v0}, Lorg/spongycastle/crypto/tls/MaxFragmentLength;->isValid(S)Z

    move-result v1

    if-eqz v1, :cond_14

    if-nez p0, :cond_1a

    .line 64
    invoke-static {p1}, Lorg/spongycastle/crypto/tls/TlsExtensionsUtils;->getMaxFragmentLengthExtension(Ljava/util/Hashtable;)S

    move-result v1

    if-eq v0, v1, :cond_1a

    .line 66
    :cond_14
    new-instance v0, Lorg/spongycastle/crypto/tls/TlsFatalAlert;

    invoke-direct {v0, p3}, Lorg/spongycastle/crypto/tls/TlsFatalAlert;-><init>(S)V

    throw v0

    .line 69
    :cond_1a
    return v0
.end method

.method protected static generateCertificate(Lorg/spongycastle/crypto/tls/Certificate;)[B
    .registers 2

    .prologue
    .line 75
    new-instance v0, Ljava/io/ByteArrayOutputStream;

    invoke-direct {v0}, Ljava/io/ByteArrayOutputStream;-><init>()V

    .line 76
    invoke-virtual {p0, v0}, Lorg/spongycastle/crypto/tls/Certificate;->encode(Ljava/io/OutputStream;)V

    .line 77
    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object v0

    return-object v0
.end method

.method protected static generateSupplementalData(Ljava/util/Vector;)[B
    .registers 2

    .prologue
    .line 83
    new-instance v0, Ljava/io/ByteArrayOutputStream;

    invoke-direct {v0}, Ljava/io/ByteArrayOutputStream;-><init>()V

    .line 84
    invoke-static {v0, p0}, Lorg/spongycastle/crypto/tls/TlsProtocol;->writeSupplementalData(Ljava/io/OutputStream;Ljava/util/Vector;)V

    .line 85
    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object v0

    return-object v0
.end method

.method protected static validateSelectedCipherSuite(IS)V
    .registers 3

    .prologue
    .line 91
    invoke-static {p0}, Lorg/spongycastle/crypto/tls/TlsUtils;->getEncryptionAlgorithm(I)I

    move-result v0

    packed-switch v0, :pswitch_data_e

    .line 97
    return-void

    .line 95
    :pswitch_8
    new-instance v0, Lorg/spongycastle/crypto/tls/TlsFatalAlert;

    invoke-direct {v0, p1}, Lorg/spongycastle/crypto/tls/TlsFatalAlert;-><init>(S)V

    throw v0

    .line 91
    :pswitch_data_e
    .packed-switch 0x1
        :pswitch_8
        :pswitch_8
    .end packed-switch
.end method


# virtual methods
.method protected processFinished([B[B)V
    .registers 5

    .prologue
    .line 29
    new-instance v0, Ljava/io/ByteArrayInputStream;

    invoke-direct {v0, p1}, Ljava/io/ByteArrayInputStream;-><init>([B)V

    .line 31
    array-length v1, p2

    invoke-static {v1, v0}, Lorg/spongycastle/crypto/tls/TlsUtils;->readFully(ILjava/io/InputStream;)[B

    move-result-object v1

    .line 33
    invoke-static {v0}, Lorg/spongycastle/crypto/tls/TlsProtocol;->assertEmpty(Ljava/io/ByteArrayInputStream;)V

    .line 35
    invoke-static {p2, v1}, Lorg/spongycastle/util/Arrays;->constantTimeAreEqual([B[B)Z

    move-result v0

    if-nez v0, :cond_1b

    .line 37
    new-instance v0, Lorg/spongycastle/crypto/tls/TlsFatalAlert;

    const/16 v1, 0x28

    invoke-direct {v0, v1}, Lorg/spongycastle/crypto/tls/TlsFatalAlert;-><init>(S)V

    throw v0

    .line 39
    :cond_1b
    return-void
.end method