Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Ctors](https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#pubctors) \| [Methods](https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#inhmethods)

# RSAOtherPrimeInfo

` public class RSAOtherPrimeInfo `   
` extends https://developer.android.com/reference/java/lang/Object ` ` `

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | java.security.spec.RSAOtherPrimeInfo |

<br />

*** ** * ** ***

This class represents the triplet (prime, exponent, and coefficient) inside RSA's OtherPrimeInfo structure, as defined in the [PKCS#1 v2.2](https://tools.ietf.org/rfc/rfc8017.txt) standard. The ASN.1 syntax of RSA's OtherPrimeInfo is as follows:

```
OtherPrimeInfo ::= SEQUENCE {
  prime        INTEGER,
  exponent     INTEGER,
  coefficient  INTEGER
}

```

<br />

**See also:**

- `https://developer.android.com/reference/java/security/spec/RSAPrivateCrtKeySpec`
- `https://developer.android.com/reference/java/security/interfaces/RSAMultiPrimePrivateCrtKey`

## Summary

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#RSAOtherPrimeInfo(java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger)(https://developer.android.com/reference/java/math/BigInteger prime, https://developer.android.com/reference/java/math/BigInteger primeExponent, https://developer.android.com/reference/java/math/BigInteger crtCoefficient) ` Creates a new `RSAOtherPrimeInfo` given the prime, primeExponent, and crtCoefficient as defined in PKCS#1. |

| ### Public methods ||
|---|---|
| ` final https://developer.android.com/reference/java/math/BigInteger` | ` https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#getCrtCoefficient()() ` Returns the prime's crtCoefficient. |
| ` final https://developer.android.com/reference/java/math/BigInteger` | ` https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#getExponent()() ` Returns the prime's exponent. |
| ` final https://developer.android.com/reference/java/math/BigInteger` | ` https://developer.android.com/reference/java/security/spec/RSAOtherPrimeInfo#getPrime()() ` Returns the prime. |

### Inherited methods

From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` https://developer.android.com/reference/java/lang/Object#finalize()() `

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
` final https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait()() `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*.

## Public constructors

### RSAOtherPrimeInfo

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public RSAOtherPrimeInfo (BigInteger prime, 
                BigInteger primeExponent, 
                BigInteger crtCoefficient)
```

Creates a new `RSAOtherPrimeInfo` given the prime, primeExponent, and crtCoefficient as defined in PKCS#1.

<br />

| Parameters ||
|---|---|
| `prime` | `BigInteger`: the prime factor of n. <br /> |
| `primeExponent` | `BigInteger`: the exponent. <br /> |
| `crtCoefficient` | `BigInteger`: the Chinese Remainder Theorem coefficient. <br /> |

| Throws ||
|---|---|
| `https://developer.android.com/reference/java/lang/NullPointerException` | if any of the parameters, i.e. `prime`, `primeExponent`, `crtCoefficient`, is null. |

## Public methods

### getCrtCoefficient

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public final BigInteger getCrtCoefficient ()
```

Returns the prime's crtCoefficient.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/math/BigInteger` | the crtCoefficient. <br /> |

### getExponent

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public final BigInteger getExponent ()
```

Returns the prime's exponent.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/math/BigInteger` | the primeExponent. <br /> |

### getPrime

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public final BigInteger getPrime ()
```

Returns the prime.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/math/BigInteger` | the prime. <br /> |