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modPowCT requires GMP 5

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zzz
2015-05-26 18:16:55 +00:00
parent e0fe2439e6
commit 6076bb3b2b
1 changed files with 5 additions and 2 deletions
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7
core/java/src/net/i2p/util/NativeBigInteger.java
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@ -98,6 +98,8 @@ public class NativeBigInteger extends BigInteger {
private static boolean _nativeOk;
/** is native lib loaded and at least version 3? */
private static boolean _nativeOk3;
/** is native lib loaded and at least version 3, and GMP at least version 5? */
private static boolean _nativeCTOk;
private static int _jbigiVersion;
private static String _libGMPVersion = "unknown";
private static String _loadStatus = "uninitialized";
@ -559,6 +561,7 @@ public class NativeBigInteger extends BigInteger {
int min = nativeGMPMinorVersion();
int pat = nativeGMPPatchVersion();
_libGMPVersion = maj + "." + min + "." + pat;
_nativeCTOk = maj >= 5;
} catch (Throwable t) {
warn("jbigi version " + _jbigiVersion + " but GMP version not available???", t);
}
@ -635,10 +638,10 @@ public class NativeBigInteger extends BigInteger {
/**
* @throws ArithmeticException if m <= 0
* @since 0.9.18 and libjbigi version 3
* @since 0.9.18 and libjbigi version 3 and GMP version 5
*/
public BigInteger modPowCT(BigInteger exponent, BigInteger m) {
if (_nativeOk3)
if (_nativeCTOk)
return new NativeBigInteger(nativeModPowCT(toByteArray(), exponent.toByteArray(), m.toByteArray()));
else
return modPow(exponent, m);