Can hash values be the same?

No two data can theoretically have same Hash Value. There is a condition called as Collision in Hashing. Collision is a situation when two different Data have the same Hash Value. Best hashing algorithm is the one which cannot cause Hash Value Collision.

Is the hash value always the same?

That hash is usually a string of characters and the hashes generated by a formula are always the same length, regardless of how much data you feed into it. So, for example, the MD5 formula for the string Dataspace returns the value e2d48e7bc4413d04a4dcb1fe32c877f6. Every time it will return that same value.

Can hashing be repeated?

The basic idea of repeated hashing is to rehash the overflow records into a smaller separate storage area; the overflow records from this area are in turn hashed into a still smaller separate storage area, etc. The problem of optimally partitioning the total storage area is considered and the optimal solution is given.

Can different inputs have the same hash?

The same input always generates the same hash value, and a good hash function tends to generate different hash values when given different inputs. Therefore, there’s always a chance that two different inputs will generate the same hash value.

Can two inputs produce same hash?

When hashing passwords, two passwords can produce the same hash, so if a user inputs someone else’s username but his own password, there is a possibility that he will be able to login to that other account.

When in hashing for two different input values same hash value is produced then it is known as *?

If two different inputs are having the same hash value, it is called a collision. Since hash functions have infinite input length and a predefined output length, there is a possibility of two different inputs that produce same hash value.

Is hash same for same string?

Yes, if you hash the same input with the same function, you will always get the same result. This follows from the fact that it is a hash-function.

Can you double hash?

“Double” hashing (or the logical expansion of that, iterating a hash function) is absolutely secure if done right, for a specific concern.

What is multiple hashing?

Double hashing is a collision resolving technique in Open Addressed Hash tables. Double hashing uses the idea of applying a second hash function to key when a collision occurs. It is one of effective method for resolving collisions.

When two different inputs give the same output it is known as hash function?

Collision Resistance This property means it should be hard to find two different inputs of any length that result in the same hash. This property is also referred to as collision free hash function.

Can hash be same for different strings?

Yes. Two different strings can absolutely give the same SHA256. If you know the hash it takes 2^256 evaluations to find another string that gives the same hash.

Can different password have same hash?

Can different strings return the same hash code?

Different strings can return the same hash code. The hash code itself is not guaranteed to be stable. Hash codes for identical strings can differ across .NET implementations, across .NET versions, and across .NET platforms (such as 32-bit and 64-bit) for a single version of .NET.

Is there a unique hash code for each unique string value?

However, there is not a unique hash code value for each unique string value. Different strings can return the same hash code. The hash code itself is not guaranteed to be stable.

How stable is the hash code?

The hash code itself is not guaranteed to be stable. Hash codes for identical strings can differ across.NET implementations, across.NET versions, and across.NET platforms (such as 32-bit and 64-bit) for a single version of.NET. In some cases, they can even differ by application domain.

What is a comparison hash code?

One of the enumeration values that specifies the rules to use in the comparison. A 32-bit signed integer hash code. Returns the hash code for this string using the specified rules. One of the enumeration values that specifies the rules to use in the comparison. A 32-bit signed integer hash code.