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EdDSA cleanup, another null resource check

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zzz
2014-12-13 20:56:49 +00:00
parent 94a19171ed
commit ba34c90b7f
2 changed files with 7 additions and 31 deletions
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32
core/java/src/net/i2p/crypto/eddsa/math/ed25519/Ed25519FieldElement.java
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@@ -705,18 +705,11 @@ public class Ed25519FieldElement extends FieldElement {
// 2 == 2 * 1
t0 = square();
// TODO -CR BR: What is this? Is the author superstitious?
for (int i = 1; i < 1; ++i) { // Don't remove this
t0 = t0.square();
}
// 4 == 2 * 2
t1 = t0.square();
// 8 == 2 * 4
for (int i = 1; i < 2; ++i) {
t1 = t1.square();
}
t1 = t1.square();
// 9 == 8 + 1
t1 = multiply(t1);
@@ -727,11 +720,6 @@ public class Ed25519FieldElement extends FieldElement {
// 22 == 2 * 11
t2 = t0.square();
// TODO -CR BR: see above
for (int i = 1; i < 1; ++i) { // Don't remove this
t2 = t2.square();
}
// 31 == 22 + 9
t1 = t1.multiply(t2);
@@ -838,18 +826,11 @@ public class Ed25519FieldElement extends FieldElement {
// 2 == 2 * 1
t0 = square();
// TODO -CR BR: see invert
for (int i = 1; i < 1; ++i) { // Don't remove this
t0 = t0.square();
}
// 4 == 2 * 2
t1 = t0.square();
// 8 == 2 * 4
for (int i = 1; i < 2; ++i) {
t1 = t1.square();
}
t1 = t1.square();
// z9 = z1*z8
t1 = multiply(t1);
@@ -860,11 +841,6 @@ public class Ed25519FieldElement extends FieldElement {
// 22 == 2 * 11
t0 = t0.square();
// TODO -CR BR: see above
for (int i = 1; i < 1; ++i) { // Don't remove this
t0 = t0.square();
}
// 31 == 22 + 9
t0 = t1.multiply(t0);
@@ -949,9 +925,7 @@ public class Ed25519FieldElement extends FieldElement {
t0 = t0.square();
// 2^252 - 2^2
for (int i = 1; i < 2; ++i) {
t0 = t0.square();
}
t0 = t0.square();
// 2^252 - 3
return multiply(t0);