public final class com.google.crypto.tink.subtle.X25519
minor version: 0
major version: 59
flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
this_class: com.google.crypto.tink.subtle.X25519
super_class: java.lang.Object
{
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial java.lang.Object.<init>:()V
return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lcom/google/crypto/tink/subtle/X25519;
public static byte[] generatePrivateKey();
descriptor: ()[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=1, args_size=0
0: bipush 32
invokestatic com.google.crypto.tink.subtle.Random.randBytes:(I)[B
astore 0
start local 0 1: aload 0
iconst_0
dup2
baload
bipush 7
ior
i2b
bastore
2: aload 0
bipush 31
dup2
baload
bipush 63
iand
i2b
bastore
3: aload 0
bipush 31
dup2
baload
sipush 128
ior
i2b
bastore
4: aload 0
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
1 5 0 privateKey [B
public static byte[] computeSharedSecret(byte[], byte[]);
descriptor: ([B[B)[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=4, args_size=2
start local 0 start local 1 0: aload 0
arraylength
bipush 32
if_icmpeq 2
1: new java.security.InvalidKeyException
dup
ldc "Private key must have 32 bytes."
invokespecial java.security.InvalidKeyException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
bipush 11
newarray 11
astore 2
start local 2 3: aload 0
bipush 32
invokestatic java.util.Arrays.copyOf:([BI)[B
astore 3
start local 3 4: aload 3
iconst_0
dup2
baload
sipush 248
iand
i2b
bastore
5: aload 3
bipush 31
dup2
baload
bipush 127
iand
i2b
bastore
6: aload 3
bipush 31
dup2
baload
bipush 64
ior
i2b
bastore
7: aload 2
aload 3
aload 1
invokestatic com.google.crypto.tink.subtle.Curve25519.curveMult:([J[B[B)V
8: aload 2
invokestatic com.google.crypto.tink.subtle.Field25519.contract:([J)[B
areturn
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 9 0 privateKey [B
0 9 1 peersPublicValue [B
3 9 2 x [J
4 9 3 e [B
Exceptions:
throws java.security.InvalidKeyException
MethodParameters:
Name Flags
privateKey
peersPublicValue
public static byte[] publicFromPrivate(byte[]);
descriptor: ([B)[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=3, locals=2, args_size=1
start local 0 0: aload 0
arraylength
bipush 32
if_icmpeq 2
1: new java.security.InvalidKeyException
dup
ldc "Private key must have 32 bytes."
invokespecial java.security.InvalidKeyException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
bipush 32
newarray 8
astore 1
start local 1 3: aload 1
iconst_0
bipush 9
bastore
4: aload 0
aload 1
invokestatic com.google.crypto.tink.subtle.X25519.computeSharedSecret:([B[B)[B
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 privateKey [B
3 5 1 base [B
Exceptions:
throws java.security.InvalidKeyException
MethodParameters:
Name Flags
privateKey
}
SourceFile: "X25519.java"
RuntimeInvisibleAnnotations:
com.google.crypto.tink.annotations.Alpha()